N.D.G.James. (1990). The Arboricculturalist's Companion: A guide to the care of Trees. Basil Blackwell.
استشهاد بنمط شيكاغوN.D.G.James. The Arboricculturalist's Companion: A Guide to the Care of Trees. Basil Blackwell, 1990.
MLA استشهادN.D.G.James. The Arboricculturalist's Companion: A Guide to the Care of Trees. Basil Blackwell, 1990.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.