एपीए उद्धरण

Varma, S. P. (1972). Devanagiri Lipi: Eithasik Tatha Bhasavaijnanik Adyayan. Viswavidhyalaya.

शिकागो स्टाइल उद्धरण

Varma, Sivasankar Prasad. Devanagiri Lipi: Eithasik Tatha Bhasavaijnanik Adyayan. Bhagalpur: Viswavidhyalaya, 1972.

एमएलए उद्धरण

Varma, Sivasankar Prasad. Devanagiri Lipi: Eithasik Tatha Bhasavaijnanik Adyayan. Viswavidhyalaya, 1972.