APA

George J. C., Minor W., . (2009). The Last Polar Bear. : Harpercollinschildrens.

Chicago

George Jean Craighead, Minor Wendell, . 2009. The Last Polar Bear. : Harpercollinschildrens.

Harvard

George J. C., Minor W., . (2009). The Last Polar Bear. : Harpercollinschildrens.

MLA

George Jean Craighead, Minor Wendell, . The Last Polar Bear. : Harpercollinschildrens. 2009.