APA (7th ed.) Citation

Stix, H., Abbott, R. T., & Stix, M. (1968). The shell: Five hundred million years of inspired design. Abrams.

Chicago Style (17th ed.) Citation

Stix, Hugh, Robert Tucker Abbott, and Marguerite Stix. The Shell: Five Hundred Million Years of Inspired Design. New York: Abrams, 1968.

MLA (9th ed.) Citation

Stix, Hugh, et al. The Shell: Five Hundred Million Years of Inspired Design. Abrams, 1968.