Cita APA (7th ed.)

RAM, B. (1971). Text-book of co-ordinate geometry (for. Parakashan Kendra.

Cita Chicago (17th ed.)

RAM, Ballabh. Text-book of Co-ordinate Geometry (for. Lucknow: Parakashan Kendra, 1971.

Cita MLA (9th ed.)

RAM, Ballabh. Text-book of Co-ordinate Geometry (for. Parakashan Kendra, 1971.