Παραπομπή APA

Lang, S. (1990). Undergraduate algebra .-2nd ed. (2nd ed.). Springer-Verlag.

Παραπομπή Chicago Style

Lang, Serge. Undergraduate Algebra .-2nd Ed. 2nd ed. New York: Springer-Verlag, 1990.

Παραπομπή MLA

Lang, Serge. Undergraduate Algebra .-2nd Ed. 2nd ed. Springer-Verlag, 1990.