APA (7th ed.) Citation

Gier, K., & Bell, A. (2013). Sapphire blue (First Square Fish edition.). Square Fish.

Chicago Style (17th ed.) Citation

Gier, Kerstin, and Anthea Bell. Sapphire Blue. First Square Fish edition. New York: Square Fish, 2013.

MLA (8th ed.) Citation

Gier, Kerstin, and Anthea Bell. Sapphire Blue. First Square Fish edition. Square Fish, 2013.

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