@book{73299,
	author = {Johnson,Edwin S. },
	title = {Research Methods In Criminology And Criminal Justice /},
	publisher = {Prentice-Hall, Inc,},
	year = {1981.},
	address = {New Jersy :},
	url = {https://fll.law.cu.edu.eg/fulltext/bks/B10-10945.pdf}
}