TY  - BOOK
T1  - Science and ecosystem management in the national parks /
DA  - c1996.
CY  - Tucson :
AU  - Halvorson, William L.
AU  - Davis, Gary E.
CN  - SB482.A4
CN  - SB482.A4
PB  - University of Arizona Press,
PP  - Tucson :
PY  - c1996.
ID  - 227616
KW  - National parks and reserves
KW  - Conservation of natural resources
KW  - Ecosystem management
KW  - Natural resources
KW  - National parks and reserves
SN  - 0816515662 (alk. paper)
TI  - Science and ecosystem management in the national parks /
ER  -