technical nature, e.g., the Circular, a reference nunnber, 

 rather than the date, may be used with the author's nanrie, 

 as Aldous (1). The references are numbered consecutively 

 in the order in which they occur through the paper, and are 

 listed in that order in the formal list of literature cita- 

 tions. 



Use of such expressions as "loc. cit." and "ibid." are 

 to be avoided. If the original reference is far enough 

 removed to make another reference to the work necessary, 

 it is far more helpful to the reader to repeat the reference. 



References to manuscripts that have been approved for 

 publication are cited "in press," and indicated thus, Berry 

 (in press) or (King, in press). You should verify the refer- 

 ence in page proof. 



When you make a reference in text to information re- 

 ceived orally, in writing, or from unpublished material, give 

 the name of your informant and the date (if available); also 

 record the source in parentheses, as (oral communication), 

 (letter), or similar expression, but avoid "in lit." 



References to unpublished papers, reports, or other 

 material not satisfactorily placed in a list of citations, are 

 cited in text near the point of reference. The footnote 

 should carry the author's name, the date, title of the 

 manuscript or report, number of pages, source or agency, 

 and place of filing. 



PREPARING THE CITATION 



Be accurate. --Yon are responsible for the accuracy of your 

 citations. A citation should never be copied from another's 

 list of citations, for in this way errors are perpetuated 

 from publication to publication. Consistency in the form of 

 the citation can be checked at the time you make up the 

 list of references. 



Be complete.— Your objective in preparing a citation is 

 completeness, rather than brevity. No reader should have 

 to spend an unnecessary amount of time trying to locate a 

 reference because you left out an important item. The need 

 for completeness is obvious when you consider the great 

 volume of published material in the modern library. 



If the reference is little known or very old and may be 

 difficult to find, supply any additional information you can. 

 Where was the work published? Has it been reprinted? Is 

 an abstract available? If it is in a foreign language, es- 

 pecially Russian or one of the oriental languages, does it 

 have an English translation or summary? When giving 



