Yazar
p f philipp
3 cilt bulundu.
Cilt sonuçları
Readings in farming systems research and development
W. W. Shaner, P. F. Philipp · Westview Press
175 sayfa · 1982
Congresses / Agricultural systems / Agriculture / Research / Agriculture, research
Four papers on the Papua New Guinea cattle industry
P. F. Philipp · New Guinea Research Unit, Australian National University
257 sayfa · 1975
Beef industry / Case studies / Rural development