Python leksykon kieszonkowy podrecz̨ny przewodnik po jezuku Python! - Lutz, Mark (Helion, 2014)
Authorized Polish translation of the English edition Python Pocket Reference, 5th Edition ISBN 9781449357016, c2014. Cf. Copyright page. - Includes bibliographical references and index. - Online resource; title from cover (Safari, viewed Oct. 20, 2014)