APA (7th ed.) Citation

Moore, A. D., & Harwani, B. (2019). Python GUI Programming - A Complete Reference Guide: Develop Responsive and Powerful GUI Applications with PyQt and Tkinter.

Chicago Style (17th ed.) Citation

Moore, Alan D., and B.M Harwani. Python GUI Programming - A Complete Reference Guide: Develop Responsive and Powerful GUI Applications with PyQt and Tkinter. 2019.

MLA (9th ed.) Citation

Moore, Alan D., and B.M Harwani. Python GUI Programming - A Complete Reference Guide: Develop Responsive and Powerful GUI Applications with PyQt and Tkinter. 2019.

Warning: These citations may not always be 100% accurate.