Peterson, Roger Tory, 1908-

A field guide to wildflowers of Northeastern and North-Central North America / a visual approach arranged by color, form, and detail, by Roger Tory Peterson and Margaret McKenny ; illus. by Roger Tory Peterson. - Boston : Houghton Mifflin, 1968. - xxviii, 420 p. : ill. (some col.) ; 20 cm. - Peterson field guide series ; 17 .

ISBN: 039508086X

LCCN: 67013042

Subjects--Topical Terms:
Wild flowers--United States.

LC Class. No.: QK118 / .P5

Dewey Class. No.: 582.13/097