APA (7th ed.) Citation

Vinje, H. (1980). New ideas in defensive play in bridge. Cornerstone Library.

Chicago Style (17th ed.) Citation

Vinje, Helge. New Ideas in Defensive Play in Bridge. New York: Cornerstone Library, 1980.

MLA (9th ed.) Citation

Vinje, Helge. New Ideas in Defensive Play in Bridge. Cornerstone Library, 1980.