TY  - BOOK
AU  - Clark,Colin
AU  - Haswell,Margaret Rosary
TI  - The economics of subsistence agriculture,
SN  - 0333036883
U1  - 338.1 CAL 
PY  - 1970///
CY  - London, New York
PB  - Macmillan, St. Martin's P.
KW  - Agriculture
KW  - Economic aspects
N1  - Bibliography: p. 245-257
ER  -