APA (7th ed.) Citation
Stix, H., Stix, M., Abbott, R. T., & Landshoff, H. (1972). The Shell: 500,000,000 years of inspired design. Abrams.
Chicago Style (17th ed.) Citation
Stix, Hugh, Marguerite Stix, Robert Tucker Abbott, and H. Landshoff. The Shell: 500,000,000 Years of Inspired Design. New York: Abrams, 1972.
MLA (9th ed.) Citation
Stix, Hugh, et al. The Shell: 500,000,000 Years of Inspired Design. Abrams, 1972.
Warning: These citations may not always be 100% accurate.