APA (7th ed.) Citation

Ghatak, A. K., & Thyagarajan, K. Introduction to fiber optics.

Chicago Style (17th ed.) Citation

Ghatak, A. K., and K. Thyagarajan. Introduction to Fiber Optics.

MLA (8th ed.) Citation

Ghatak, A. K., and K. Thyagarajan. Introduction to Fiber Optics.

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