TY  - BOOK
AU  - Knorr, Dietrich (ed.)
TI  - Sustainable food systems / edited by Dietrich Knorr
U1  - B 13.231 KNO -4247   
CY  - USA : Avi Publishing Company, 1983.
KW  - Food industry and trade
KW  - Organic farming
KW  - AGR
ER  -