APA (7th ed.) Citation

Lobo, M. J. A., & Subirá, P. A. (1993). Big Red Bus 1. Pupil's book (1ª.). Heinemann.

Chicago Style (17th ed.) Citation

Lobo, María José Autora, and Pepita Autora Subirá. Big Red Bus 1. Pupil's Book. 1ª. 1-Madrid,España: Heinemann, 1993.

MLA (9th ed.) Citation

Lobo, María José Autora, and Pepita Autora Subirá. Big Red Bus 1. Pupil's Book. 1ª. Heinemann, 1993.