Bansi Lal. (1976). Three dimensional differential geometry (4th ed.). Atmaram & Sons.
Dyfyniad Arddull ChicagoBansi Lal. Three Dimensional Differential Geometry. 4th ed. Delhi: Atmaram & Sons, 1976.
Dyfyniad MLABansi Lal. Three Dimensional Differential Geometry. 4th ed. Atmaram & Sons, 1976.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.