TY  - BOOK
A1  - Wachter, K.W.
A1  - Hammel, E.A.
A1  - Laslett, P. 
T1  - Statistical studies of historical social structure
Y1  - 1978
DO  - 10.1016/B978-0-12-729150-5.50001-8
CY  - London and New York
PB  - Academic Press

ER  -