Gaya APA

Farthing, M, J., Ballinger, A, B. (2001). Drug Therapy for Gastrointestinal and Liver Disease . : Martin Dunitz.

Gaya MLA

Farthing, Michael, JG., Ballinger, Anne, B.. "Drug Therapy for Gastrointestinal and Liver Disease". : Martin Dunitz, 2001. Text.