-
By: Ruggieri, George D. - Nigrelli, Ross F. (Ross Franco), - Powles, P. M. - Garnett, D. G.Type: ArticleIn: Zoologica : scientific contributions of the New York Zoological SocietyVolume: 55Series:Issue: 4Date: 1970-12-15Page Range: 57--72Publication Info: New York,Subjects:
-
By: Ross , Jay - Powles, P. M. - Berrill, MichaelType: ArticleIn: The Canadian field-naturalistVolume: 91Series:Issue: 4Date: 1977Page Range: 406--410Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
-
By: Hamilton, James G. - Powles, P. M.Type: ArticleIn: The Canadian field-naturalistVolume: 97Series:Issue: 1Date: 1983Page Range: 47--56Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
-
By: Powles, P. M. - MacCrimmon, Hugh R. - Macrae, Donald A.Type: ArticleIn: The Canadian field-naturalistVolume: 97Series:Issue: 3Date: 1983Page Range: 293--298Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
-
By: Powles, P. M. - S. Finucan, S. - Van Haaften, M. - Curry, R. AllenType: ArticleIn: The Canadian field-naturalistVolume: 106Series:Issue: 2Date: 1992Page Range: 237--240Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: