Cita APA (7th ed.)

WALLACE, A. H. (1957). An introduction to algebraic topology. Pergamon Press.

Cita Chicago (17th ed.)

WALLACE, Andrew H. An Introduction to Algebraic Topology. Oxford: Pergamon Press, 1957.

Cita MLA (9th ed.)

WALLACE, Andrew H. An Introduction to Algebraic Topology. Pergamon Press, 1957.