Yazar
robert m petty
4 cilt bulundu.
Cilt sonuçları
Wetlands and quiet waters of the Midwest
Torkel Korling, Robert O. Petty, Anne M. Petty · Indiana University Press
99 sayfa · 2005
Wetland ecology / Wetland plants / Wild flowers / Plant life: general / Nature
Crowding
Robert M. Petty · Council of Planning Librarians
36 sayfa · 1971
Bibliography / Population / Population forecasting / Population research
The optimal size for discussion groups
Robert M. Petty · Council of Planning Librarians]
19 sayfa · 1973
Bibliography / Meetings / Small groups / Interpersonal relations