Lieb, K., & Brandtönies, S. (2010). A Survey of German Physicians in Private Practice About Contacts With Pharmaceutical Sales Representatives. Deutscher Arzte Verlag.
Chicago-стиль цитированияLieb, Klaus, and Simone Brandtönies. A Survey of German Physicians in Private Practice About Contacts With Pharmaceutical Sales Representatives. Deutscher Arzte Verlag, 2010.
MLA-цитированиеLieb, Klaus, and Simone Brandtönies. A Survey of German Physicians in Private Practice About Contacts With Pharmaceutical Sales Representatives. Deutscher Arzte Verlag, 2010.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.