books.google.ca - More than ever before, there is widespread interest in studying bumble bees and the critical role they play in our ecosystems. Bumble Bees of North America is the first comprehensive guide to North American bumble bees to be published in more than a century. Richly illustrated with color photographs,...https://books.google.ca/books/about/Bumble_Bees_of_North_America.html?id=imfOAgAAQBAJ&utm_source=gb-gplus-shareBumble Bees of North America
