TY  - BOOK
AU  - Grigg David
TI  - Population growth and agrarian change :  An historical perpective   
T2  - Cambridge geographical studies.13
SN  - 0 521 29635 8
U1  - Y:50aX9(J).1(X).N7, M0 
PY  - 1980///
CY  - Cambridge
PB  - Cambridge University Press        
N1  - Bibliography : P296-332
ER  -