APA stil citiranja

(1968). Areas administered by the National Park Service and related properties as of january 1. 1968: Areas administered by the National Park Service and related properties as of january 1. 1968. Washington: U.S. Government Printing Office.

Chicago stil citiranja

Areas administered by the National Park Service and related properties as of january 1. 1968: Areas administered by the National Park Service and related properties as of january 1. 1968. Washington: U.S. Government Printing Office, 1968.

MLA stil citiranja

Areas administered by the National Park Service and related properties as of january 1. 1968: Areas administered by the National Park Service and related properties as of january 1. 1968. Washington: U.S. Government Printing Office, 1968.