APA (7th ed.) Citation

Wallace, A. H. (1968). Differential topology; first steps. W.A. Benjamin.

Chicago Style (17th ed.) Citation

Wallace, Andrew H. Differential Topology; First Steps. New York: W.A. Benjamin, 1968.

MLA (9th ed.) Citation

Wallace, Andrew H. Differential Topology; First Steps. W.A. Benjamin, 1968.