Cita APA (7a ed.)

Lefschetz, S. (1949). Introduction to Topology. Princeton Univ. Press.

Cita Chicago Style (17a ed.)

Lefschetz, Solomon. Introduction to Topology. Princeton: Princeton Univ. Press, 1949.

Cita MLA (8a ed.)

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