Παραπομπή APA

Massey, W. S. (1967). Algebraic topology: An introduction.

Παραπομπή Chicago Style

Massey, William S. Algebraic Topology: An Introduction. Harcourt Brace & World, New York, 1967.

Παραπομπή MLA

Massey, William S. Algebraic Topology: An Introduction. 1967.