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- [Washington, D.C. : The National Parks & Conservation Association, c1980-
- Quarterly, 2004-
- [Vol. 55, no. 1] (Jan. 1981)-
Title from cover. Latest issue consulted: Vol. 81, no. 1 (winter 2007). Periodical
Published by: 1981-1999, National Parks and Conservation Association; 2000-, National Parks Conservation Association.
0276-8186
National parks and reserves--United States--Periodicals. Conservation of natural resources--United States--Periodicals. Nature conservation--Law and legislation--United States--Periodicals.