Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.