TY  - BOOK
AU  - Emlen,J.Merritt
TI  - Ecology an evolutionary approach
U1  - 574.5 
PY  - 1973///
CY  - Reading, Mass.
PB  - Addison-Wesley Pub.
KW  - Ecology
KW  - Environment
KW  - Oscillations
KW  - Genetics
N1  - Includes index
ER  -