APA (7th ed.) Citation

Porteous, I. R. (1969). Topological geometry (1969). Van Nostrand Reinhold.

Chicago Style (17th ed.) Citation

Porteous, Ian Robertson. Topological Geometry (1969). London: Van Nostrand Reinhold, 1969.

MLA (9th ed.) Citation

Porteous, Ian Robertson. Topological Geometry (1969). Van Nostrand Reinhold, 1969.