एपीए उद्धरण

Usha Nilsson. (1969). Surdas: Makers of Indian Literature. Sahitya Akademi.

शिकागो स्टाइल उद्धरण

Usha Nilsson. Surdas: Makers of Indian Literature. New Delhi: Sahitya Akademi, 1969.

एमएलए उद्धरण

Usha Nilsson. Surdas: Makers of Indian Literature. Sahitya Akademi, 1969.