APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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