Παραπομπή APA

Croom, F. H. (1978). Basic concepts of algebraic topology. Springer-Verlag.

Παραπομπή Chicago Style

Croom, Fred H. Basic Concepts of Algebraic Topology. New York: Springer-Verlag, 1978.

Παραπομπή MLA

Croom, Fred H. Basic Concepts of Algebraic Topology. Springer-Verlag, 1978.