Cita APA (7th ed.)

CROOM, F. H. (1928). Basic Concepts of algebraic topology. Springer-Verlag.

Cita Chicago (17th ed.)

CROOM, Fred H. Basic Concepts of Algebraic Topology. New- York: Springer-Verlag, 1928.

Cita MLA (9th ed.)

CROOM, Fred H. Basic Concepts of Algebraic Topology. Springer-Verlag, 1928.