1. Sustainable agriculture systems
Author: edited by J. L. Hatfield, D. L. Karlen
Library: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
Subject: ، Sustainable agriculture,، Agricultural systems,، Agricultural ecology
Classification :
S
494
.
5
.
S86
S86
1994
2. Sustainable agriculture systems
Author: edited by J.L. Hatfield, D.L. Karlen
Library: Central library and information center (Khorasan Razavi)
Subject: ، Sustainable agriculture,، Agricultural systems,، Agricultural ecology
Classification :
S
494
.
5
.
S86
S86
1994
