APA-viite

Seifert H Threlfall W. (1980). Text book of Topology. Academic press.

Chicago-tyylinen lähdeviittaus

Seifert H Threlfall W. Text Book of Topology. New York: Academic press, 1980.

MLA-viite

Seifert H Threlfall W. Text Book of Topology. Academic press, 1980.