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.