TY  - BOOK
AU  - Boeringa,R.
TI  - Alternative methods of agriculture:developments in agricultural and mana- ged forest ecology-10
U1  - 631.1 
PY  - 1980///
CY  - N.Y.
PB  - Elsevier Scientific Pub. Co.
KW  - Agriculture
KW  - Alternative Methods of Agriculture
KW  - Crop Production
ER  -