TY  - BOOK
ED  - United States.
TI  - Annual report of  the chief scientist of the national park service Cy 1975
U1  - 363.68 
PY  - 1976///
CY  - Washington, D.C.
PB  - United States Government Printing Office
KW  - National Park
KW  - Chief scientists
KW  - National park
ER  -