Citazione Stile APA (7a Edizione)

Parr, B., & Peck, A. J. (1988). Mastering German (1. publ. with revisions.). Macmillan.

Citazione stile Chigago Style (17a edizione)

Parr, Betty, e Antony J. Peck. Mastering German. 1. publ. with revisions. Basingstoke [u.a.]: Macmillan, 1988.

Citatione MLA (9a ed.)

Parr, Betty, e Antony J. Peck. Mastering German. 1. publ. with revisions. Macmillan, 1988.