APA-referens

Busemann, H., & Kelly, P. J. (1953). Projective geometry and projective metrics. Academic Press.

Chicago-stil citat

Busemann, Herbert, och Paul Joseph Kelly. Projective Geometry and Projective Metrics. New York: Academic Press, 1953.

MLA-referens

Busemann, Herbert, och Paul Joseph Kelly. Projective Geometry and Projective Metrics. Academic Press, 1953.