Dyfyniad APA

Hesse,P R. (1998). Text book of soil chemical analysis. CBS Publishers and Distributors.

Dyfyniad Arddull Chicago

Hesse,P R. Text Book of Soil Chemical Analysis. New Delhi: CBS Publishers and Distributors, 1998.

Dyfyniad MLA

Hesse,P R. Text Book of Soil Chemical Analysis. CBS Publishers and Distributors, 1998.

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