Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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