Cita APA (7th ed.)

Tiwari, B. (1993). Patra Vyavahar Nirdeshika. Vani.

Cita Chicago (17th ed.)

Tiwari, Bholanath. Patra Vyavahar Nirdeshika. New delhi: Vani, 1993.

Cita MLA (9th ed.)

Tiwari, Bholanath. Patra Vyavahar Nirdeshika. Vani, 1993.