Dyfyniad APA

Oborn, I. (1994). Morphology, chemistry, mineralogy and fertility of some acid sulfate soils in Sweden. Swenden: Swedish University of Agricultural Sciences.

Dyfyniad Arddull Chicago

Oborn, Ingrid. Morphology, Chemistry, Mineralogy and Fertility of Some Acid Sulfate Soils in Sweden. Swenden: Swedish University of Agricultural Sciences, 1994.

Dyfyniad MLA

Oborn, Ingrid. Morphology, Chemistry, Mineralogy and Fertility of Some Acid Sulfate Soils in Sweden. Swenden: Swedish University of Agricultural Sciences, 1994.

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