Cita APA (7a ed.)

Lester, H., & Munsinger, L. (1988). Tacky the penguin. Houghton Mifflin Co..

Cita Chicago Style (17a ed.)

Lester, Helen, y Lynn Munsinger. Tacky the Penguin. Boston: Houghton Mifflin Co., 1988.

Cita MLA (8a ed.)

Lester, Helen, y Lynn Munsinger. Tacky the Penguin. Houghton Mifflin Co., 1988.