एपीए उद्धरण

Bhat Sudhakar. (1975). Challenge of the North East. Popular-prakasan.

शिकागो स्टाइल उद्धरण

Bhat Sudhakar. Challenge of the North East. Bombay: Popular-prakasan, 1975.

एमएलए उद्धरण

Bhat Sudhakar. Challenge of the North East. Popular-prakasan, 1975.