एपीए उद्धरण

Lefschetz, S. (1974). Algebraic topology. American Mathematical Society.

शिकागो स्टाइल उद्धरण

Lefschetz, Solomon. Algebraic Topology. Rhode Island: American Mathematical Society, 1974.

एमएलए उद्धरण

Lefschetz, Solomon. Algebraic Topology. American Mathematical Society, 1974.