Bansilal. (1976). Three - dimensional differential geometry (4th ed.). Atma Ram.
Παραπομπή Chicago StyleBansilal. Three - Dimensional Differential Geometry. 4th ed. Delhi: Atma Ram, 1976.
Παραπομπή MLABansilal. Three - Dimensional Differential Geometry. 4th ed. Atma Ram, 1976.
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