TY  - BOOK
AU  - Ricklefs,Robert E.
TI  - The economy of nature: a textbook in basic ecology 
SN  - 0913462047
AV  - QH541 .R54
PY  - 1976///
CY  - Portland, Or.
PB  - Chiron Press
KW  - Ecology
N1  - Includes index; Bibliography: p. 430-440
ER  -