Schacker, Michael. A spring without bees : how colony collapse disorder has endangered our food supply / Michael Schacker ; foreword by Bill McKibben. - Guilford, Conn. : Lyons Press ; c2008. - xii, 292 p. ; 24 cm. ISBN: 9781599216003 1599216000 9781599214320 1599214326 LCCN: 2009284214 LC Class. No.: SF538.5.C65 / S33 2008 Dewey Class. No.: 638.15