Tiwari, B. (1993). Patra Vyavahar Nirdeshika. Vani.
Chicago Style (17th ed.) CitationTiwari, Bholanath. Patra Vyavahar Nirdeshika. New delhi: Vani, 1993.
MLA (9th ed.) CitationTiwari, Bholanath. Patra Vyavahar Nirdeshika. Vani, 1993.
Warning: These citations may not always be 100% accurate.