-
By: Claassen, P. W. (Peter Walter), - Beamer, R. H. (Raymond Hill),Edition:Publication info: Topeka, University of Kansas, 1917Volume:Series:Holding Institution: Smithsonian Libraries and ArchivesSubjects:BHL Collections:
-
By: Claassen, P. W. (Peter Walter), - Needham, James G. (James George),Edition:Publication info: Ithaca, N.Y, The Comstock publishing co, [c1922]Volume:Series:Holding Institution: Library of CongressSubjects:BHL Collections:
-
By: Needham, James G. (James George), - Claassen, P. W. (Peter Walter),Edition:Publication info: LaFayette, Ind, 1925Volume:Series:Holding Institution: MBLWHOI LibrarySubjects:BHL Collections:
-
By: Claassen, P. W. (Peter Walter),Edition:Publication info: Springfield, Ill, Pub. for the Thomas Say Foundation by C.C. Thomas, 1931Volume:Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects:BHL Collections:
-
By: Claassen, P. W. (Peter Walter),Type: ArticleIn: The Kansas University science bulletinVolume: 14Series:Issue: 16Date: 1922-10Page Range: 395--399Publication Info: Lawrence, Kan, The University, 1902-1924Subjects:
-
By: Claassen, P. W. (Peter Walter),Type: ArticleIn: Annals of the Entomological Society of AmericaVolume: 12Series:Issue:Date: 1919Page Range: 95--100Publication Info: [College Park, Md., etc.], Entomological Society of America,Subjects:
-
By: Claassen, P. W. (Peter Walter),Type: ArticleIn: Annals of the Entomological Society of AmericaVolume: 11Series:Issue:Date: 1918Page Range: 9--16Publication Info: [College Park, Md., etc.], Entomological Society of America,Subjects: