एपीए उद्धरण

muhammad, a. .. (2012). Crop production for agricultural improvement. springer.

शिकागो स्टाइल उद्धरण

muhammad, ashraf .et.al. Crop Production for Agricultural Improvement. newyork: springer, 2012.

एमएलए उद्धरण

muhammad, ashraf .et.al. Crop Production for Agricultural Improvement. springer, 2012.