APA
Samuelsson G. B. L., . (2015). Drugs of natural origin. Apotekarsocieteten: Stockholm.
Chicago
Samuelsson Gunnar Bohlin Lars, . 2015. Drugs of natural origin. Apotekarsocieteten: Stockholm.
Harvard
Samuelsson G. B. L., . (2015). Drugs of natural origin. Apotekarsocieteten: Stockholm.
MLA
Samuelsson Gunnar Bohlin Lars, . Drugs of natural origin. Apotekarsocieteten: Stockholm. 2015.