APA (7th ed.) Citation

ScienceDirect (Online service), Keystone, J. S., Kozarsky, P. E., Connor, B. A., Nothdurft, H. D., Mendelson, M., & Leder, K. (2019). Travel medicine (Fourth edition.). Elsevier.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), J. S. Keystone, Phyllis E. Kozarsky, Bradley A. Connor, Hans D. Nothdurft, Marc Mendelson, and Karin Leder. Travel Medicine. Fourth edition. Edinburgh: Elsevier, 2019.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. Travel Medicine. Fourth edition. Elsevier, 2019.