APA (7th ed.) Citation

Gustafson, A. F. (1949). Conservation in the United States (3rd ed.). Comstock.

Chicago Style (17th ed.) Citation

Gustafson, A. F. Conservation in the United States. 3rd ed. Ithaca: Comstock, 1949.

MLA (9th ed.) Citation

Gustafson, A. F. Conservation in the United States. 3rd ed. Comstock, 1949.

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