Dyfyniad APA

Watson, G. W. (2000). Root injury and tree health. Champaign: International Society of Arboriculture.

Dyfyniad Arddull Chicago

Watson, Gary W. Root Injury and Tree Health. Champaign: International Society of Arboriculture, 2000.

Dyfyniad MLA

Watson, Gary W. Root Injury and Tree Health. Champaign: International Society of Arboriculture, 2000.

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