APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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