Exploring our national parks and monuments.
Contributors: National Parks Association (U.S.)
Edition: 3d ed.
Publisher: Houghton Mifflin
Published: 1951
Place of publication: Boston
Language: eng
Number of pages: 286
Subjects: National parks and reserves -- United States.
Notes: Bibliography: p. 277-282.
"Prepared under the auspices of the National Parks Association."