APA (7th ed.) Citation

Downie, M. (1995). Freeform: Student's book 1. Santillana.

Chicago Style (17th ed.) Citation

Downie, Michael. Freeform: Student's Book 1. Buenos Aires: Santillana, 1995.

MLA (9th ed.) Citation

Downie, Michael. Freeform: Student's Book 1. Santillana, 1995.