Gaya APA

Braun, L., Cohen, M. (2015). HERBS & NATURAL SUPPLEMENTS an evidence-based guide VOLUME 2 (4). USA: Elsevier.

Gaya MLA

Braun, Lesley., Cohen, Marc. "HERBS & NATURAL SUPPLEMENTS an evidence-based guide VOLUME 2". 4 USA: Elsevier, 2015. Text.