APA (7th ed.) Citation

Slevin, J. R. (1959). The Galápagos Islands.

Chicago Style (17th ed.) Citation

Slevin, Joseph Richard. The Galápagos Islands. 1959.

MLA (9th ed.) Citation

Slevin, Joseph Richard. The Galápagos Islands. 1959.

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