@book{173286,
	author = {Bryman, Alan.},
	title = {Social research methods /},
	publisher = {Oxford University Press,},
	year = {2016.},
	address = {Oxford ;},
	edition = {Fifth Edition},
	url = {https://www.loc.gov/catdir/enhancements/fy1617/2015940141-b.html}
}