Dyfyniad APA
Das, B., & B.N. Mukherjee. (2004). Higher secondary co-ordinate geometry (16th ed.). U.N. Dhar & Sons.
Dyfyniad Arddull Chicago
Das, B.C, and B.N. Mukherjee. Higher Secondary Co-ordinate Geometry. 16th ed. Kolkata: U.N. Dhar & Sons, 2004.
Dyfyniad MLA
Das, B.C, and B.N. Mukherjee. Higher Secondary Co-ordinate Geometry. 16th ed. U.N. Dhar & Sons, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.