@book{78161,
	author = {Gurvitch, Georges},
	title = {Traité De Sociologie.},
	publisher = {Presses Universitaires De France,},
	year = {1962.},
	series = {Bibliothèque De Sociologie Contemporaine},
	address = {Paris :},
	edition = {Seconde Edition ;},
	url = {https://fll.law.cu.edu.eg/fulltext/bks/B08-06645.pdf}
}