@book{37337,
	author = {James, Rosalind R.},
	title = {Bee pollination in agricultural ecosystems},
	publisher = {Oxford University Press,},
	year = {2008.},
	address = {Oxford :},
	url = {http://dx.doi.org/10.1093/acprof:oso/9780195316957.001.0001}
}