Παραπομπή APA

Childs, L. (1995). Concrete introduction to higher algebra.-2nded. (2nd ed.). Springer.

Παραπομπή Chicago Style

Childs, Lindsay. Concrete Introduction to Higher Algebra.-2nded. 2nd ed. New York: Springer, 1995.

Παραπομπή MLA

Childs, Lindsay. Concrete Introduction to Higher Algebra.-2nded. 2nd ed. Springer, 1995.