United States. Dept. of the Interior. Bureau of Outdoor Recreation
United States. Outdoor Recreation, Bureau of
United States. Heritage Conservation and Recreation Service
prepared by Urban Research Development Corporation
U.S. Dept. of the Interior, Bureau of Outdoor Recreation
U.S. Dept. of the Interior, Bureau of Outdoor Recreation : For sale by the Supt. of Docs., U.S. G.P.O.
For sale by the Supt. of Docs., U.S. Govt. Print. Off.]
by the National Academy of Sciences for the U.S. Dept. of the Interior, Bureau of Outdoor Recreation
National Academy of Sciences
Publication / National Academy of Sciences, National Research Council
Department of the interior Bureau of outdoor recreation and Department of the interior library
Dept. of the Interior Library; for sale by the Supt. of Docs., U.S. Gov. Print. Off.
v. 1. Citation item number 60001-60991, covering calendar year 1966 , v. 2. Citation item numbers 70000-70847, winter 1966-spring 1967 , v. 3. Citation item numbers 70848-71686, (1967) , v. 4. Citation item numbers 80001-81113, (1968)