TY  - BOOK
AU  - Casey, Frank.
AU  - Barker, Randolph.
TI  - A course in farming systems research: : the Cornell experience
T2  - Cornell international agriculture mimeograph
U1  - 631.5 
PY  - 1982///
CY  - Ithaca
PB  - Cornell University ; New York, State College of Agriculture and Life Science
KW  - Sistemas de cultivo
ER  -