APA (7th ed.) Citation

Stone, R. W. (1920). Gypsum deposits of the United States. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Stone, Ralph W. Gypsum Deposits of the United States. Washington: Govt. Print. Off, 1920.

MLA (9th ed.) Citation

Stone, Ralph W. Gypsum Deposits of the United States. Govt. Print. Off, 1920.

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