1. Agricultural Extension: Worldwide institutional evolution and forces for change
Author:
Library: Central Library and Information Center of the University of Mohaghegh Ardabili (Ardabil)
Subject: Agricultural extension work
Classification :
S544
.
R5
1991
2. Agricultural extension: worldwide institutional evolution and forces for change
Author: edited by William M. Rivera and Daniel J. Gustafson
Library: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
Subject: ، Agricultural extension work
Classification :
S
544
.
A47
1991
