Cita APA (7th ed.)

Pontriagin, L. S. (1946). Topological groups. Princeton University.

Cita Chicago (17th ed.)

Pontriagin, Lev Semenovich. Topological Groups. Princeton: Princeton University, 1946.

Cita MLA (9th ed.)

Pontriagin, Lev Semenovich. Topological Groups. Princeton University, 1946.