TY  - BOOK
AU  - Pirone,P.P.
TI  - Tree maintenance
U1  - 635.977 
PY  - 1959///
CY  - New York
PB  - Oxford University Press
KW  - Trees
KW  - Arboriculture
KW  - Wounds and injuries
KW  - Diseases and pests
N1  - Includes index; Originally pub. in 1941 as maintenance of shade and ornamental trees and rev. in 1948; Bibliography: p. 447-465
ER  -