TY  - BOOK
AU  - Whittaker,Robert H.
TI  - Communities and ecosystems
SN  - 0024273902
AV  - QH541 .W44 1975
U1  - 574.5/24 
PY  - 1975///
CY  - New York
PB  - Macmillan
KW  - Ecology
N1  - Includes bibliographical references; Includes bibliographies and index
ER  -