APA Style

Lester, Helen. (1988). Tacky the Penguin . United Kingdom: Houghton Mifflin.

Chicago Style

Lester, Helen. Tacky the Penguin. United Kingdom: Houghton Mifflin, 1988. .

MLA Style

Lester, Helen. Tacky the Penguin. United Kingdom: Houghton Mifflin, 1988. .

Turabian Style

Lester, Helen. Tacky the Penguin. United Kingdom: Houghton Mifflin, 1988. .