Cita APA (7th ed.)

Spanier, E. H. (1966). Algebraic Topology. McGraw-Hill.

Cita Chicago (17th ed.)

Spanier, Edwin H. Algebraic Topology. Nueva York: McGraw-Hill, 1966.

Cita MLA (9th ed.)

Spanier, Edwin H. Algebraic Topology. McGraw-Hill, 1966.