APA (7th ed.) Citation

(2019). Geometrical optics. 3G E-Learning.

Chicago Style (17th ed.) Citation

Geometrical Optics. New York, NY: 3G E-Learning, 2019.

MLA (9th ed.) Citation

Geometrical Optics. 3G E-Learning, 2019.

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