एपीए उद्धरण

Singh, P. (2012). Encyclopaedia of agronomy. Oxford Book Company.

शिकागो स्टाइल उद्धरण

Singh, P. Encyclopaedia of Agronomy. Jaipur: Oxford Book Company, 2012.

एमएलए उद्धरण

Singh, P. Encyclopaedia of Agronomy. Oxford Book Company, 2012.