Dyfyniad APA

(1982). The soils of the flat wetland of the world, their distribution and their agricultural potential. Wageningen: International Soil Museum.

Dyfyniad Arddull Chicago

The Soils of the Flat Wetland of the World, Their Distribution and Their Agricultural Potential. Wageningen: International Soil Museum, 1982.

Dyfyniad MLA

The Soils of the Flat Wetland of the World, Their Distribution and Their Agricultural Potential. Wageningen: International Soil Museum, 1982.

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