APA (7th ed.) Citation

Merriam, E., & Duke, B. (1998). What in the world? HarperCollins.

Chicago Style (17th ed.) Citation

Merriam, Eve, and Barbara Duke. What in the World? New York: HarperCollins, 1998.

MLA (8th ed.) Citation

Merriam, Eve, and Barbara Duke. What in the World? HarperCollins, 1998.

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