@book{76930,
	author = {Nigro, Felix A. and Nigro, Lloyd G.},
	title = {Modern Public Administration/},
	publisher = {M. Dekker,},
	year = {1984.},
	address = {New York :},
	edition = {Sixth Edition.},
	url = {https://fll.law.cu.edu.eg/fulltext/bks/ENGB07-05693.pdf}
}