TY  - BOOK
AU  - Clapham, Wentworth B.,
AU  - 
ED  - 
ED  - 
ED  - 
ED  - 
SN  - 23225106
SN  - 2
PY  - 1981///];copyright 1981.46
CY  - New York
PB  - Macmillan
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Human ecology
N1  - Includes bibliographical references and index; 5
ER  -