@book{18045,
	author = {McConnel Campbell R. Brue Stanley L.},
	title = {Microeconomics Principles, Problems, and Policies},
	publisher = {McGraw Hill},
	address = {New York},
	edition = {21},
	url = {https://libgen.is/book/index.php?md5=6368710502D416C36A59AFECB69B0ECD}
}