APA (7th ed.) Citation

Roll, E. (1937). Elements of economic theory: By Erich Roll .. Geoffrey Cumberlege, Oxford University Press.

Chicago Style (17th ed.) Citation

Roll, Erich. Elements of Economic Theory: By Erich Roll .. London: Geoffrey Cumberlege, Oxford University Press, 1937.

MLA (9th ed.) Citation

Roll, Erich. Elements of Economic Theory: By Erich Roll .. Geoffrey Cumberlege, Oxford University Press, 1937.