TY  - BOOK
AU  - NYERGES A.Endre
TI  - �cology of practice:  Studies of food crop production in Sub-Saharan west Africa.   
SN  - 9789056995744
U1  - X9(J3):2.65, N7 
PY  - 1997///
CY  - Australia
PB  - Gordan and Breach Publisher       
KW  - Sociology
ER  -