Citazione Stile APA (7a Edizione)

Harvard, J., & Adamson, P. (1970). Beginners' German: An introduction to conversational German (6. impr.). Univ. of London Press.

Citazione stile Chigago Style (17a edizione)

Harvard, Joseph, e Patricia Adamson. Beginners' German: An Introduction to Conversational German. 6. impr. London: Univ. of London Press, 1970.

Citatione MLA (9a ed.)

Harvard, Joseph, e Patricia Adamson. Beginners' German: An Introduction to Conversational German. 6. impr. Univ. of London Press, 1970.