@book{67750,
	author = {Gerling, Dan. and Hefetz, Abraham.},
	title = {Comparative behavioral biology of two middle east species of carpenter bees (Xylocopa latreille) (Hymenoptera : Apoidea)},
	publisher = {Smithsonian Institution,},
	year = {1983},
	series = {Contribution to zoology},
	address = {Washington :}
}