APA (7th ed.) Citation

Muller, M., & Martínez, G. (1997). English My Way (First edition.). Disonex.

Chicago Style (17th ed.) Citation

Muller, Marthe, and Gonzálo Martínez. English My Way. First edition. Bogotá: Disonex, 1997.

MLA (9th ed.) Citation

Muller, Marthe, and Gonzálo Martínez. English My Way. First edition. Disonex, 1997.