@book{7109,
	author = {Cooper, Peter},
	title = {Beginning ruby from novoice to professional},
	publisher = {Apress},
	address = {India},
	edition = {2nd},
	url = {https://libgen.is/book/index.php?md5=48D2CF15D5F6155B6E83D6DA9FAC7DB9}
}