Petrov, A. P., & Petrov, A. A. (2011). Concept of the Ural pharmaceutical cluster formation. Russian Academy of Sciences, Institute of Economics of the Ural Branch.
Lua i Stíl Chicago (17ú heag.)Petrov, Aleksandr Petrovich, agus Aleksandr Aleksandrovich Petrov. Concept of the Ural Pharmaceutical Cluster Formation. Russian Academy of Sciences, Institute of Economics of the Ural Branch, 2011.
Lua MLA (9ú heag.)Petrov, Aleksandr Petrovich, agus Aleksandr Aleksandrovich Petrov. Concept of the Ural Pharmaceutical Cluster Formation. Russian Academy of Sciences, Institute of Economics of the Ural Branch, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.