1. A History of Farming Systems research
پدیدآورنده : / edited by M.P. Collinson
کتابخانه: Central Library and Information Center of the University of Mohaghegh Ardabili (Ardabil)
موضوع : Agricultural Systems _ Research History.
رده :
S494
,.
5
.
H
57
2. A history of farming systems research
پدیدآورنده : edited by M. Collinson
کتابخانه: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
موضوع : Research --History ، Agricultural systems
رده :
S
494
.
5
.
S95
H57
2000
