Dyfyniad APA

(1995). Soil amendments impacts on biotic systems. Boca Raton, USA: Lewis Publishers.

Dyfyniad Arddull Chicago

Soil Amendments Impacts On Biotic Systems. Boca Raton, USA: Lewis Publishers, 1995.

Dyfyniad MLA

Soil Amendments Impacts On Biotic Systems. Boca Raton, USA: Lewis Publishers, 1995.

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