TY  - BOOK
AU  - Begon Michael
AU  -  Harper John L.
AU  -  Townsend, Colin R.
TI  - Ecology 
SN  - 0-632-02344-9.
AV  - QH541.B415 
CY  - Boston
KW  -  Animal ecology
KW  -  Environmental sciences
KW  -  Population biology
KW  - Biology
KW  - Ecology
ER  -