Cita APA (7a ed.)

Das Shashiprabha. (2004). Pappu's Problem. National Book Trust.

Cita Chicago Style (17a ed.)

Das Shashiprabha. Pappu's Problem. New Delhi: National Book Trust, 2004.

Cita MLA (9a ed.)

Das Shashiprabha. Pappu's Problem. National Book Trust, 2004.