TY  - BOOK
AU  - Clark,Colin
AU  - Haswell,Margaret,auth.
TI  - The Economics of Subsistence Agriculture
U1  - 338.1 
PY  - 1970///
CY  - London
PB  - MacMillan and Co.
KW  - Production
KW  - Agriculture
N1  - Includes bibliography & index
ER  -