Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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