APA Style

Whaites, E., Drage, N. (2021). Essentials of Dental Radiography and Radiology 6th edition (6th edition). : Elsevier.

MLA Style

Whaites, Eric.., Drage, Nicholas.. "Essentials of Dental Radiography and Radiology 6th edition". 6th edition : Elsevier, 2021. E-Book.