APA (7th ed.) Citation

Heinrich, B. Winter world the ingenuity of animal survival. HaperCollins.

Chicago Style (17th ed.) Citation

Heinrich, Bernd. Winter World the Ingenuity of Animal Survival. HaperCollins.

MLA (8th ed.) Citation

Heinrich, Bernd. Winter World the Ingenuity of Animal Survival. HaperCollins.

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