1. Conservation policies for sustainable hillslope farming
پدیدآورنده :
کتابخانه: Central Library and Document Center of Shahid Chamran University (Khuzestan)
موضوع : Soil conservation- Government policy- Congresses,Water conservation- Government policy- Congresses,Hill farming- Congresses,Sustainable agriculture- Congresses
2. Water and agriculture: a symposium presented at the Washington meeting of the American Association for the Advancement of Science, December 29-30, 1958
پدیدآورنده : Edited by Roy D. Hockensmith
کتابخانه: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
موضوع : Congresses ، Water conservation,Congresses ، Agriculture
رده :
GB
651
.
A5
A68
