Opler Paul A.:
A Field Guide to Western Butterflies
Editor: Roger ToryPeterson, Illustrator: Amy BartlettWright
Houghton Mifflin Harcourt (Hmh) , 1999
Quality paperback, 560 pages
Size: 184x116 mm
ISBN: 9780395791516
ISBN-10: 0395791510
Paul A. Opler
Opler Is A Professor And Senior Research Scientist At Colorado State University And A Vice President Of The North American Butterfly Association.
Roger Tory Peterson
Roger Tory Peterson, One Of The World's Greatest Naturalists, Received Every Major Award For Ornithology, Natural Science, And Conservation, As Well As Numerous Honorary Degrees, Medals, And Citations, Including The Presidential Medal Of Freedom. The Peterson Identification System Has Been Called The Greatest Invention Since Binoculars, And The Peterson Field Guides(R) Are Credited With Helping To Set The Stage For The Environmental Movement.

