@book{42633,
	author = {Stigler, J. George},
	title = {Prodution and Distribution theories :},
	publisher = {The Macmillan,},
	year = {1946.},
	address = {New York :},
	note = {Includes index.},
	url = {https://fll.law.cu.edu.eg/fulltext/bks/B13-06471.pdf}
}