TY  - BOOK
AU  - Emlen, J.Merrit.
TI  - Ecology: An Evolutionary approach / 
SN  - 0-201-01894-2
U1  - G:5 
PY  - 1968///
CY  - California : 
PB  - Addison-Wesley Publishing Company , 
KW  - Life Science<Ecology>
ER  -