protecting north america's bees and butterflies Mader, Eric creator LeBuhn, Gretchen Shepherd, Matthew Vaughan, Mace Black, Scott Hoffman North Adams Storey Publishing 2011 2011 xi,372p. ill 25cm Bees - habitat Insect pollinators - conservation Bees - conservation Insect pollinators - habitat 631.52 ATT 9781603426954