@book{21620,
	author = {Peck, Antony J.},
	title = {Mastering german},
	publisher = {Macmillan Publishing Company},
	year = {1982},
	address = {Hong Kong},
	url = {https://libgen.is/book/index.php?md5=480522084F83E9C5FE7519B421A5EB0E}
}