TY  - BOOK
AU  - Ricklefs,Robert E
AU  - Whiles,Matt R
TI  - The economy of nature: data analysis update 
SN  - 0716777622
U1  - 577.21 RIC 22
PY  - 2007///
CY  - New York
PB  - W.H. Freeman
KW  - Ecology
ER  -