Dyfyniad APA
Kolay, A. K. (2000). Basics concepts of soil science (2nd ed.). New Age International.
Dyfyniad Arddull Chicago
Kolay, A. K. Basics Concepts of Soil Science. 2nd ed. Kolkata: New Age International, 2000.
Dyfyniad MLA
Kolay, A. K. Basics Concepts of Soil Science. 2nd ed. New Age International, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.