@book{77417,
	author = {Richer,Laurent },
	title = {Droit Des Contrats Administratifs/},
	publisher = {L.G.D.J,},
	year = {1995.},
	address = {Paris:},
	url = {https://fll.law.cu.edu.eg/fulltext/bks/B07-05425.pdf}
}