Yazar
david o hansen
5 cilt bulundu.
Rattan Lal, David Kraybill, David O. Hansen, Bal Ram Singh, Theodosy Mosogoya, Lars Olav Eik · Springer
741 sayfa · 2016
Climatic changes / Agriculture, africa
Rattan Lal, Bal Ram Singh, Dismas L. Mwaseba, David Kraybill, David O. Hansen, Lars Olav Eik · Springer
665 sayfa · 2014
Africa, environmental conditions / Alternative agriculture / Sustainable agriculture / Environmental sciences / Environmental management
David O. Hansen · U.S. Agency for International Development
54 sayfa · 1988
Agricultural education / Evaluation / Instituto Superior de Agricultura
David O. Hansen, N. Uphoff, B. A. Stewart, Rattan Lal · Taylor & Francis Group
808 sayfa · 2005
Kategori yok
Rattan Lal, Norman Uphoff, David O. Hansen · Taylor & Francis Group
480 sayfa · 2010
Food supply / Agriculture, environmental aspects / Agriculture, developing countries