Bumble Bees of North America: An Identification Guide. By Paul H. Williams, Robbin W. Thorp, Leif L. Richardson, and Sheila R. Colla. Princeton (New Jersey): Princeton University Press. $24.95 (paper). 208 p.; ill.; index. ISBN: 978-0-691-15222-6. 2014.

2014 ◽  
Vol 89 (4) ◽  
pp. 403-403
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