APA (7th ed.) Citation

Friend, I. (1955). Pricing and price differentials on over-the-counter markets. University of Pennsylvania Press.

Chicago Style (17th ed.) Citation

Friend, Irwin. Pricing and Price Differentials on Over-the-counter Markets. Philadelphia: University of Pennsylvania Press, 1955.

MLA (9th ed.) Citation

Friend, Irwin. Pricing and Price Differentials on Over-the-counter Markets. University of Pennsylvania Press, 1955.