APA (7th ed.) Citation

Grindley, S., & Butler, J. (1998). Polar star. Peachtree.

Chicago Style (17th ed.) Citation

Grindley, Sally, and John Butler. Polar Star. Atlanta, Ga.: Peachtree, 1998.

MLA (8th ed.) Citation

Grindley, Sally, and John Butler. Polar Star. Peachtree, 1998.

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