TY  - BOOK
ED  - United States.
TI  - Compilation of the administrative policies for the national recreation areas, national seashores, national lakeshores, national parkways, national scenic riverways (recreational area category) of the national park system
U1  - 354 
PY  - 1968///
CY  - Washington
PB  - Department of the Interior, National Park Service
KW  - Parques nacionales naturales
KW  - Política ambiental
KW  - Areas de recreación
KW  - Recursos paisajísticos
KW  - Manejo ambiental
ER  -