APA (7th ed.) Citation

Bruemmer, F. (1989). World of the polar bear. NorthWord.

Chicago Style (17th ed.) Citation

Bruemmer, Fred. World of the Polar Bear. USA: NorthWord, 1989.

MLA (9th ed.) Citation

Bruemmer, Fred. World of the Polar Bear. NorthWord, 1989.

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