Hobson, J. (2011). The art of creative pruning: Inventive ideas for training and shaping trees and shrubs. Timber Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHobson, Jake. The Art of Creative Pruning: Inventive Ideas for Training and Shaping Trees and Shrubs. Portland, Or.: Timber Press, 2011.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHobson, Jake. The Art of Creative Pruning: Inventive Ideas for Training and Shaping Trees and Shrubs. Timber Press, 2011.
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