APA (7th ed.) Citation

United States. Forest Service & United States Ski Association. Winter recreation safety guide ([Slightly rev. Sept. 1978.].).

Chicago Style (17th ed.) Citation

United States. Forest Service and United States Ski Association. Winter Recreation Safety Guide. [Slightly rev. Sept. 1978.].

MLA (9th ed.) Citation

United States. Forest Service and United States Ski Association. Winter Recreation Safety Guide. [Slightly rev. Sept. 1978.].

Warning: These citations may not always be 100% accurate.