Skiing :
the national forests ... America's playgrounds.
APA Citation
United States. Forest Service., United States. Department of Agriculture. (1966). Skiing: the national forests ... America's playgrounds. Washington, DC: United States Government Printing Office.
MLA Citation
United States. Forest Service, and United States. Department of Agriculture. Skiing: the National Forests ... America's Playgrounds. Washington, DC: United States Government Printing Office, 1966.
Warning: These citations may not always be complete (especially for serials).