APA (7th ed.) Citation

Zoehfeld, K. W., & Davie, H. (1994). What lives in a shell? HarperCollins Publishers.

Chicago Style (17th ed.) Citation

Zoehfeld, Kathleen Weidner, and Helen Davie. What Lives in a Shell? New York: HarperCollins Publishers, 1994.

MLA (8th ed.) Citation

Zoehfeld, Kathleen Weidner, and Helen Davie. What Lives in a Shell? HarperCollins Publishers, 1994.

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