Cita APA (7th ed.)

LEFSCHETZ, S. (1949). Introduction to topology. Princeton, Univ. Press.

Cita Chicago (17th ed.)

LEFSCHETZ, Solomon. Introduction to Topology. New Jersey: Princeton, Univ. Press, 1949.

Cita MLA (9th ed.)

LEFSCHETZ, Solomon. Introduction to Topology. Princeton, Univ. Press, 1949.