Pring, M. J. (1993). Martin Pring on market momentum. McGraw-Hill.
Cita Chicago (17th ed.)Pring, Martin J. Martin Pring on Market Momentum. New York: McGraw-Hill, 1993.
Cita MLA (9th ed.)Pring, Martin J. Martin Pring on Market Momentum. McGraw-Hill, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.