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Are you Alex L. Shigo, author of the books below?
Modern Arboriculture by Alex L. Shigo A New Tree Biology by Alex L. Shigo Tree Pruning by Alex L. Shigo 100 Tree Myths by Alex L. Shigo Tree Basics by Alex L. Shigo Tree Pithy Points by Alex L. Shigo Tree Anatomy by Alex L. Shigo A tree hurts, too by Alex L. Shigo Tree Pruning Basics by Alex L. Shigo A New Tree Biology by Alex L. Shigo


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