@book{3957,
	author = {Barnett, Raymond A.},
	title = {Calculus},
	publisher = {Pearson Education Publisher},
	year = {2011},
	address = {Boston},
	edition = {12th},
	url = {https://www.libgen.is/book/index.php?md5=D9D1ACFDFFC8A9004A0438D52047F627}
}