APA (7th ed.) Citation

Buck, P. S., & Spencer, C. (1954). My several worlds: Abridged for younger readers. John Day.

Chicago Style (17th ed.) Citation

Buck, Pearl S., and Cornelia Spencer. My Several Worlds: Abridged for Younger Readers. New York: John Day, 1954.

MLA (9th ed.) Citation

Buck, Pearl S., and Cornelia Spencer. My Several Worlds: Abridged for Younger Readers. John Day, 1954.