एपीए उद्धरण

National Arborist Association. (2000). Basic training for ground operations in tree care workbook. New York: International Society of Arboriculture and National Arborist Association.

शिकागो स्टाइल उद्धरण

National Arborist Association. Basic Training for Ground Operations in Tree Care Workbook. New York: International Society of Arboriculture and National Arborist Association, 2000.

एमएलए उद्धरण

National Arborist Association. Basic Training for Ground Operations in Tree Care Workbook. New York: International Society of Arboriculture and National Arborist Association, 2000.

चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.