Citazione Stile APA (7a Edizione)

Alexander, L. G., & Kingsbury, R. V. (1975). Mainline: Skills A : students' book (New. imp.). Longman.

Citazione stile Chigago Style (17a edizione)

Alexander, L. G., e Roy,. Vincent Kingsbury. Mainline: Skills A : Students' Book. New. imp. London: Longman, 1975.

Citatione MLA (9a ed.)

Alexander, L. G., e Roy,. Vincent Kingsbury. Mainline: Skills A : Students' Book. New. imp. Longman, 1975.