Cita APA (7a ed.)

Lefschetz, S. (1942). Algebraic topology. American Mathematical Society.

Cita Chicago Style (17a ed.)

Lefschetz, Solomon. Algebraic Topology. New York: American Mathematical Society, 1942.

Cita MLA (8a ed.)

Lefschetz, Solomon. Algebraic Topology. American Mathematical Society, 1942.