APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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