Flora of the Patuxent Research Refuge, Maryland Hotchkiss, Neil, 1901- creator text book Washington, D.C U.S. Dept. of the Interior, Bureau of Biological Survey [1940] 1940
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ENG Caption title. "May 1940." Maryland Patuxent Research Refuge Patuxent Wildlife Research Center Plants Contribution from the Patuxent Research Refuge, no. 1 Wildlife leaflet, BS-154 https://www.biodiversitylibrary.org/bibliography/49985 11330351 10.5962/bhl.title.49985 VRU