@book{20851,
	author = {Norton, Robert L},
	title = {Machine design},
	publisher = {Prentice Hall },
	year = {2007},
	address = {India},
	edition = {2nd},
	url = {https://libgen.is/book/index.php?md5=6F6C560116D156ABB2AE1723141C67F5}
}