TY  - BOOK
AU  - Clapham,Wentworth B.
TI  - Human ecosystems
SN  - 0023225106
AV  - GF41 .C527
U1  - 304.2 
PY  - 1981///
CY  - New York
PB  - Macmillan
KW  - Human ecology
KW  - Local
N1  - Includes bibliographical references and index
ER  -