Dyfyniad APA

Stephenson, W. A. (1968). Seaweed in agriculture and horticulture. Faber.

Dyfyniad Arddull Chicago

Stephenson, William Anthony. Seaweed in Agriculture and Horticulture. London: Faber, 1968.

Dyfyniad MLA

Stephenson, William Anthony. Seaweed in Agriculture and Horticulture. Faber, 1968.

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