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