1. Soil ecology in sustainable agricultural systems

Library: Central Library and Information Center of Shahed University (Tehran)

Subject: Agricultural ecology -- Congresses,Soil ecology -- Congresses,Sustainable agriculture -- Congresses

Classification :
S
،
589
.
7
،.
S637
،
1997

2. Soil ecology in sustainable agricultural systems

Library: Central Library of Shahrekord University (Chaharmahal va Bakhtiari)

Subject: Agrivultural ecology - Congresses,Soil ecology - Congresses

Classification :
{
1648
},
45f477b1b19a429ace8b9ce31a2e7e89