Walker,Hugh D. (1971). Market power and price levels in the ethical drug industry. Indiana University Press.
Chicago-stil citatWalker,Hugh D. Market Power and Price Levels in the Ethical Drug Industry. London: Indiana University Press, 1971.
MLA-referensWalker,Hugh D. Market Power and Price Levels in the Ethical Drug Industry. Indiana University Press, 1971.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.