TY  - BOOK
AU  - Ricklefs,Robert E.
TI  - The economy of nature: : a textbook in basic ecology
SN  - 071672815X
AV  - ARC QH541.R54 
PY  - 1997///
CY  - New York
PB  - W. H. Freeman and Company
KW  - Ecology
N1  - Includes bibliographical references and references
ER  -