Dyfyniad APA

Dyson, W. (1979). Experimental plantings of Araucaria spp. in East Africa and Costa Rica.

Dyfyniad Arddull Chicago

Dyson, W.G. Experimental Plantings of Araucaria Spp. in East Africa and Costa Rica. 1979.

Dyfyniad MLA

Dyson, W.G. Experimental Plantings of Araucaria Spp. in East Africa and Costa Rica. 1979.

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