MLA

Nickel, Christian, Abdelouahab Bellou, and Simon Conroy. Geriatric Emergency Medicine. Springer International Publishing, 2018.

APA

Nickel, C., Bellou, A., & Conroy, S. (2018). Geriatric Emergency Medicine. Springer International Publishing.

Chicago

Nickel, Christian, Abdelouahab Bellou, and Simon Conroy. Geriatric Emergency Medicine. : Springer International Publishing, 2018.