North American trees : exclusive of Mexico and tropical Florida /
Preston, Richard Joseph, 1905-
North American trees : exclusive of Mexico and tropical Florida / Richard J. Preston, Jr. - 4th ed. - xxvii, 407 p. : ill. ; 22 cm.
0813811724 (pbk.) 0813811716
89001944
Trees--Identification.--United States
Trees--Identification.--Canada
QK110 / .P74 1989
582.16097
North American trees : exclusive of Mexico and tropical Florida / Richard J. Preston, Jr. - 4th ed. - xxvii, 407 p. : ill. ; 22 cm.
0813811724 (pbk.) 0813811716
89001944
Trees--Identification.--United States
Trees--Identification.--Canada
QK110 / .P74 1989
582.16097