APA ציטוט

Walker,Hugh D. (1971). Market power and price levels in the ethical drug industry. Indiana University Press.

Chicago Edition Citation

Walker,Hugh D. Market Power and Price Levels in the Ethical Drug Industry. London: Indiana University Press, 1971.

ציטוט MLA

Walker,Hugh D. Market Power and Price Levels in the Ethical Drug Industry. Indiana University Press, 1971.