Alex L. Shigo

Tree Pruning: A Worldwide Photo Guide

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A New Tree Biology: Facts, Photos, and Philosophies on Trees and Their Problems and Proper Care/With Dictionary

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Modern Arboriculture: A Systems Approach to the Care of Trees and Their Associates

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A New Tree Biology: Facts, Photos and Philosophies on Trees

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100 Tree Myths

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A New Tree Biology Dictionary: Terms, Topics, and Treatments for Trees and Their Problems and Proper Care

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Tree Anatomy

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A Photo Guide to the Patterns of Discoloration and Decay in Living Northern Hardwood Trees

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Tree Pithy Points: Brief Messages on Tree Biology, Tree Care, and Philosophy

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Five Minute Tree Care

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Tree Basics: What Every Person Needs to Know About Trees

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Tree Biology and Tree Care a Photo Guide

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