PUBLICATIONS CITED 



Gasvoda, David. 

 1978. Installation and operation of the Canon 814-XL 



camera traffic classification system. USDA For. Serv. 



Manual, 9 p. Equipment Development Center, 



Missoula, Mont. 

 Hendee, John C, and Robert C. Lucas. 



1973. Mandatory wilderness permits: a necessary 

 management tool. J. For. 71(4): 206-209. 



Hendee, John C., George H. Stankey, and Robert C. Lucas. 

 1978. Wilderness management. USDA For. Serv. Misc. 

 Publ. 1365, 381 p. Washington, D.C. 

 James, George A. 

 1971. Inventorying recreation use. In Recreation: 

 symposium proceedings, p. 78-95. USDA For. Serv. 

 Northeast. For. Exp. Stn., Upper Darby, Pa. 

 James, George A., and Hans Schreuder. 



1971. Estimating recreation use on the San Gorgonio 

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James, George A., and Hans Schreuder. 



1972. Estimating dispersed recreation use along trails 

 and in general undeveloped areas with electric-eye 

 counters: some preliminary findings. USDA For. 

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 Stn., Asheville, N.C. 



Leatherberry, Earl C. and David W. Lime. 

 1980. Unstaffed trail registration in a backcountry 



recreation area: some preliminary findings. In 



Proceedings, National Trails Conference, Duluth, 



Minn. (In press.] 

 Leonard, R. E., H. E. Echelberger, and M. Schnitzer. 

 1978. Use characteristics of the Great Gulf Wilderness. 



USDA For. Serv. Res. Pap. NE-428, 9 p. Northeast 



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 Lime, David W., and Grace A. Lorence. 



1974. Improving estimates of wilderness use from 

 mandatory travel permits. USDA For. Serv. Res. Pap. 

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Lucas, Robert C. 

 1964. Recreational use of the Quetico-Superior area. 



USDA For. Serv. Res. Pap. LS-8, 50 p. Lake States 



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 Lucas, Robert C. 



1975. Low compliance rates at unmanned trail registers. 

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Lucas, Robert C. 

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Intermt. For. and Range Exp. Stn., Ogden, Utah. 

 Lucas, Robert C, and Jerry Oltman. 

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1971 . Wilderness use estimation: a pilot test of sampling 

 procedures on the Mission Mountains Primitive Area. 

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 Marnell. Leo F. 



1977. Methods for counting river recreation users. In 

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Shechter, Mordechai and Robert C. Lucas. 



1978. Simulation of recreational use for park and wilder- 

 ness management. 220 p. Johns Hopkins Univ. Press 

 for Resources for the Future, Baltimore, Md. 



Sprague, G. L. 



1979. The mandatory wilderness permit system: a policy 

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Thorsell, J. W. 

 1968. Trail use survey: Banff and Yoho National Parks. 

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 Tietz, John G. 



1973. Project record: trail traffic counter accuracy test, 

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Washburne, Randell F. 



[In press.] Recreational use. carrying capacity assess- 

 ment, and use measurement in the national wilderness 

 preservation system. In Proceedings, 2d Conference 

 on Scientific Research in the National Parks [Nov- 

 ember 26-30, 1979], San Francisco, Calif. 



Wenger, Wiley D., Jr., and H. M. Gregersen. 

 1964. The effect of non-response on representativeness 

 of wilderness-trail register information. USDA For. 

 Serv. Res. Pap. PNW-17, 20 p. Pac. Northwest For. 

 and Range Exp. Stn., Portland, Oreg. 



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