APA Style

Dhingra, P, L., Dhingra, S. (2018). Diseases of ear, nose and throat & head and neck surgery (7th ed). New Delhi: Elsevier/RELX India Pvt. Ltd..

MLA Style

Dhingra, P., L., Dhingra, Shruti. "Diseases of ear, nose and throat & head and neck surgery". 7th ed New Delhi: Elsevier/RELX India Pvt. Ltd., 2018. Text.