00522pam a2200181 a 4500 0943563046 : DLC 635 SHI 1989 A041 Or. Shigo, Alex L., A new tree biology : facts, photos, and philosophies on trees and their problems and proper care / 2nd ed. Durham, N.H. : Shigo and Trees, 1989. xiv, 618 p. : ill. ; 24 cm. Includes index. Trees. Trees, Care of. EK 12259 12259 0 0 0 635_000000000000000_SHI_1989_A041_OR 0 61661 LBA LBA A041 2017-08-11 635 SHI 1989 A041 Or. A21031 2017-08-11 2017-08-11 EK