Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.