Bursk, E. C. (1952). Thinking ahead for business. Harvard University Press.
Cita Chicago (17th ed.)Bursk, Edward Collins. Thinking Ahead for Business. Cambridge: Harvard University Press, 1952.
Cita MLA (9th ed.)Bursk, Edward Collins. Thinking Ahead for Business. Harvard University Press, 1952.
Atenció: Aquestes cites poden no estar 100% correctes.