TY  - BOOK
AU  - Colin Clark
AU  -  Margaret Haswell, 
TI  - Economics of subsistence agriculture. Ed 4
SN  - 333-11-6586
U1  - 338.1 
PY  - 1970///
CY  - London
PB  - Macmillan St Martin`s Press
N1  - Colin Clark & Margaret Haswell: Economics of subsistence agriculture. Ed 4.  (4th ED)  London.  Macmillan St Martin`s Press, 1970. 333-11-6586--(338.1CLA)
ER  -