@book{6033,
	author = {Case, Karl E},
	title = {Principles of economics},
	publisher = {Pearson Education Publisher},
	year = {2014},
	address = {New Delhi},
	edition = {9th},
	url = {https://libgen.is/book/index.php?md5=77B7846D76DE8B2F342E7D17B9A90751}
}