Cita APA (7th ed.)

Zeilinga de Boer, J., & Wareham, J. (2013). New Haven's sentinels: The art and science of East Rock and West Rock. Wesleyan University Press.

Cita Chicago (17th ed.)

Zeilinga de Boer, Jelle, i John Wareham. New Haven's Sentinels: The Art and Science of East Rock and West Rock. Middletown, Connecticut: Wesleyan University Press, 2013.

Cita MLA (9th ed.)

Zeilinga de Boer, Jelle, i John Wareham. New Haven's Sentinels: The Art and Science of East Rock and West Rock. Wesleyan University Press, 2013.