Cite Them Right 11th edition - Harvard

Moore, A.D. und Harwani, B.M. (2019) Python GUI programming - a complete reference guide : develop responsive and powerful GUI applications with Pyqt and Tkinter [cd]. Birmingham: Packt.

Chicago Manual of Style 17th edition (full note)

Moore, Alan D., und B. M. Harwani. Python GUI programming - a complete reference guide : develop responsive and powerful GUI applications with Pyqt and Tkinter. Cd. Birmingham: Packt, [2019?], Birmingham: Packt, [2019?].

American Psychological Association 7th edition

Moore, A. D., & Harwani, B. M. (ca. 2019). Python GUI programming - a complete reference guide : develop responsive and powerful GUI applications with Pyqt and Tkinter [Cd]. Packt.

Modern Language Association 9th edition

Moore, A. D., und B. M. Harwani. Python GUI programming - a complete reference guide : develop responsive and powerful GUI applications with Pyqt and Tkinter. cd, Packt, 2019.

ISO-690 (author-date, Deutsch)

MOORE, Alan D. und B. M. HARWANI, 2019. Python GUI programming - a complete reference guide : develop responsive and powerful GUI applications with Pyqt and Tkinter. Birmingham: Packt. ISBN 9781838982102

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.