MLA

Midlöv, Patrik, Tommy Eriksson, and Annika Kragh. Drug-related Problems In the Elderly. Springer Netherlands, 2009.

APA

Midlöv, P., Eriksson, T., & Kragh, A. (2009). Drug-related problems in the elderly. Springer Netherlands.

Chicago

Midlöv, Patrik, Tommy Eriksson, Annika Kragh, and Patrik Midlöv. Drug-Related Problems In the Elderly. : Springer Netherlands, 2009.