@book{65,
	author = {"Ellis, Robert"},
	title = {Calculus with analytical geometry},
	publisher = {Saunders college publishing},
	address = {New York},
	edition = {5th},
	url = {https://libgen.is/book/index.php?md5=2D3C9622ED8D12A1DCFBF7ABD9B86EC7}
}