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Bumble bees of the eastern United States
Guide to bumble bees of the eastern United States
National Fish and Wildlife Foundation (U.S.)
103 pages : color illustrations, map, chart ; 16 x 22 cm.
1 online resource (103 pages) : color illustrations, map, chart
Foreword -- About the authors -- Introduction -- Bee diagrams -- Map methodology -- Species guides -- Identification key.
Sheila Colla, Leif Richardson, Paul Williams.
"A product of the USDA Forest Service and the Pollinator Partnership with funding from the National Fish and Wildlife Foundation."
Title from title screen (viewed on Oct. 5, 2011).
Includes bibliographical references (page 103).