APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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