APA (7th ed.) Citation

United States. Forest Service. Investigating your environment: Teaching materials for environmental education ([Rev.].).

Chicago Style (17th ed.) Citation

United States. Forest Service. Investigating Your Environment: Teaching Materials for Environmental Education. [Rev.].

MLA (9th ed.) Citation

United States. Forest Service. Investigating Your Environment: Teaching Materials for Environmental Education. [Rev.].

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