APA (7th ed.) Citation

Ockenga, S., & Doolittle, E. (1988). World of wonders: A trip through numbers. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Ockenga, Starr, and Eileen Doolittle. World of Wonders: A Trip Through Numbers. Boston: Houghton Mifflin, 1988.

MLA (9th ed.) Citation

Ockenga, Starr, and Eileen Doolittle. World of Wonders: A Trip Through Numbers. Houghton Mifflin, 1988.