APA (7th ed.) Citation

Duffy, J. T. (1991). The trading advantage: Specific techniques for pinpointing high, low, and trend change points in price and time. Windsor Books.

Chicago Style (17th ed.) Citation

Duffy, Joseph T. The Trading Advantage: Specific Techniques for Pinpointing High, Low, and Trend Change Points in Price and Time. Brightwaters, NY (P.O. Box 280, Brightwaters 11718): Windsor Books, 1991.

MLA (9th ed.) Citation

Duffy, Joseph T. The Trading Advantage: Specific Techniques for Pinpointing High, Low, and Trend Change Points in Price and Time. Windsor Books, 1991.