Khanna, M. L. (1988). Solid Geometry (14th ed.). Jai Prakash Nath & Co.
Cita Chicago (17th ed.)Khanna, M. L. Solid Geometry. 14th ed. Meerut: Jai Prakash Nath & Co, 1988.
Cita MLA (9th ed.)Khanna, M. L. Solid Geometry. 14th ed. Jai Prakash Nath & Co, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.