TY  - BOOK
AU  - [Et al,]
AU  - Turk, Jonathan
TI  - Ecosystems, energy, population [instrucotor's guide]
SN  - NA
U1  - MAL 621.31 
PY  - 0000///NA
CY  - NA
PB  - W. B. Saunders Company
KW  - Energy
ER  -