TY  - BOOK
ED  - National Research Council (U.S.). Committee on the Role of Alternative Farming Methods in Modern Production Agriculture.
TI  - Alternative agriculture
SN  - 0309039851
AV  - S441 A46 1989
PY  - 1989///
CY  - Washington, D.C.
PB  - National Academy Press
KW  - Agricultural systems
KW  - United States
KW  - Agricultural ecology
KW  - Agriculture
KW  - Economic aspects
N1  - Includes bibliographical refereneces and index
ER  -