Dyfyniad APA

Tom Nicolaas Ligthart. (1996). Development of earthworm burrow systems and the influence of earthworms on soil hydrology. Wageningen: Landbouwuniversitei te Wageningen.

Dyfyniad Arddull Chicago

Tom Nicolaas Ligthart. Development of Earthworm Burrow Systems and the Influence of Earthworms On Soil Hydrology. Wageningen: Landbouwuniversitei te Wageningen, 1996.

Dyfyniad MLA

Tom Nicolaas Ligthart. Development of Earthworm Burrow Systems and the Influence of Earthworms On Soil Hydrology. Wageningen: Landbouwuniversitei te Wageningen, 1996.

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