APA (7th ed.) Citation

Mitchner, E., & Tuffs, R. J. (1989). One world. Reidmore books.

Chicago Style (17th ed.) Citation

Mitchner, E.Alyn, and R. Joanne Tuffs. One World. Edmonton: Reidmore books, 1989.

MLA (9th ed.) Citation

Mitchner, E.Alyn, and R. Joanne Tuffs. One World. Reidmore books, 1989.