APA (7th ed.) Citation

Perret, F. A. (1950). Volcanological observations. Carnegie Institution of Washington.

Chicago Style (17th ed.) Citation

Perret, Frank A. Volcanological Observations. Washington, D.C: Carnegie Institution of Washington, 1950.

MLA (9th ed.) Citation

Perret, Frank A. Volcanological Observations. Carnegie Institution of Washington, 1950.

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