Dyfyniad APA

Singh, G., & Venkataramanan, C. (1990). Manual of soil and water conservation practices. Oxford.

Dyfyniad Arddull Chicago

Singh, Gurmel, and C. Venkataramanan. Manual of Soil and Water Conservation Practices. New Delhi: Oxford, 1990.

Dyfyniad MLA

Singh, Gurmel, and C. Venkataramanan. Manual of Soil and Water Conservation Practices. Oxford, 1990.

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