Cita APA (7th ed.)

Gupta, R. C. (2005). Viva-voce in physics: For degree students of all Indian universities. Pragati Prakashan.

Cita Chicago (17th ed.)

Gupta, R. C. Viva-voce in Physics: For Degree Students of All Indian Universities. Meerut: Pragati Prakashan, 2005.

Cita MLA (9th ed.)

Gupta, R. C. Viva-voce in Physics: For Degree Students of All Indian Universities. Pragati Prakashan, 2005.