एपीए उद्धरण

Padmanabhan, T. Gravitation: Foundations and frontiers. New Delhi.

शिकागो स्टाइल उद्धरण

Padmanabhan, T. Gravitation: Foundations and Frontiers. 2010: New Delhi.

एमएलए उद्धरण

Padmanabhan, T. Gravitation: Foundations and Frontiers. New Delhi.