Cita APA (7a ed.)

Wilson, K., & Spengler, M. (2006). Animal strike at the zoo, it's true! HarperCollins.

Cita Chicago Style (17a ed.)

Wilson, Karma, y Margaret Spengler. Animal Strike at the Zoo, It's True! New York: HarperCollins, 2006.

Cita MLA (8a ed.)

Wilson, Karma, y Margaret Spengler. Animal Strike at the Zoo, It's True! HarperCollins, 2006.

Precaución: Estas citas no son 100% exactas.