Busemann, H. (1955). The geometry of geodesics. Academic Press.
Cita Chicago (17th ed.)Busemann, Herbert. The Geometry of Geodesics. Nueva York: Academic Press, 1955.
Cita MLA (9th ed.)Busemann, Herbert. The Geometry of Geodesics. Academic Press, 1955.
Atenció: Aquestes cites poden no estar 100% correctes.