APA (7th ed.) Citation

Gallagher, T. (1994). Starlight 1: Teacher's Book (1a. ed.). Santillana.

Chicago Style (17th ed.) Citation

Gallagher, Teresa....[et.al.]. Starlight 1: Teacher's Book. 1a. ed. Buenos Aires: Santillana, 1994.

MLA (9th ed.) Citation

Gallagher, Teresa....[et.al.]. Starlight 1: Teacher's Book. 1a. ed. Santillana, 1994.