APA (7th ed.) Citation

Gorbachev, V. (2008). Turtle's penguin day. Alfred A. Knopf.

Chicago Style (17th ed.) Citation

Gorbachev, Valeri. Turtle's Penguin Day. New York: Alfred A. Knopf, 2008.

MLA (8th ed.) Citation

Gorbachev, Valeri. Turtle's Penguin Day. Alfred A. Knopf, 2008.

Warning: These citations may not always be 100% accurate.