TY  - BOOK
AU  - Duckham, A.N.
AU  - Duckham, A.N. Masefield
TI  - Farming Systems Of World. Assisted By R.W. Willey
U1  - Jv1 
PY  - 1970///
CY  - Bombay
PB  - Allied Publ.
KW  - Jv1
ER  -