Cita APA (7a ed.)

EASTON, L. B., KLEIN, M., & ALLEN, H. B. (1981). Expresswaya: A basal language program level 5. The Economy Co.

Cita Chicago Style (17a ed.)

EASTON, Lois Brown, Marvin KLEIN, y Harold B. ALLEN. Expresswaya: A Basal Language Program Level 5. Oklahoma City: The Economy Co, 1981.

Cita MLA (9a ed.)

EASTON, Lois Brown, et al. Expresswaya: A Basal Language Program Level 5. The Economy Co, 1981.