TY  - BOOK
AU  - Francis, C.A, Flora, C.B. and king. L.D.
TI  - Sustainable agriculture in temperature zone
SN  - 0471622273
AV  - S 494.5.S86.S87 1990
PY  - 1990///
CY  - New York
PB  - John Wiley
KW  - Sustainable agriculture
ER  -