APA Edition Citation

Chitkala, B. C., Nalini Prasad, & Ashish Mukund. Physics Class IX. Cengage.

Chicago Edition Citation

Chitkala, B C., Nalini Prasad, and Ashish Mukund. Physics Class IX. Andover: Cengage.

MLA Edition Citation

Chitkala, B C., et al. Physics Class IX. Cengage.