Sombart, W., & Epstein, M. (1915). The quintessence of capitalism: A study of the history and psychology of the modern business man. E.P. Dutton.
Lua i Stíl Chicago (17ú heag.)Sombart, Werner, agus Mordecai Epstein. The Quintessence of Capitalism: A Study of the History and Psychology of the Modern Business Man. New York: E.P. Dutton, 1915.
Lua MLA (8ú heag.)Sombart, Werner, agus Mordecai Epstein. The Quintessence of Capitalism: A Study of the History and Psychology of the Modern Business Man. E.P. Dutton, 1915.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.