1. Land degradation in South Asia: its severity, causes and effects upon the people
پدیدآورنده : Young, Anthony
کتابخانه: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
موضوع : South Asia ، Land degradation,Zambia -- History ، Agriculture, Cooperative
رده :
GE
160
.
S64
Y68
1994
