Hill, L. (1997). Pruning made easy: A gardener's visual guide to when and how to prune everything, from flowers to trees. Storey Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHill, Lewis. Pruning Made Easy: A Gardener's Visual Guide to When and How to Prune Everything, from Flowers to Trees. Pownal, Vt.: Storey Publishing, 1997.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHill, Lewis. Pruning Made Easy: A Gardener's Visual Guide to When and How to Prune Everything, from Flowers to Trees. Storey Publishing, 1997.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.