APA (7th ed.) Citation

Brumfit, C., Moon, J., & Tongue, R. (1991). Teaching english to children: From practice to principle. Collins ELT.

Chicago Style (17th ed.) Citation

Brumfit, Christopher, Jayne Moon, and Ray Tongue. Teaching English to Children: From Practice to Principle. Londres: Collins ELT, 1991.

MLA (9th ed.) Citation

Brumfit, Christopher, et al. Teaching English to Children: From Practice to Principle. Collins ELT, 1991.