Angell, G. (1985). Real-time proven commodity spreads: The 20 most consistently profitable low-risk trades. Windsor Books.
Chicago-Zitierstil (17. Ausg.)Angell, George. Real-time Proven Commodity Spreads: The 20 Most Consistently Profitable Low-risk Trades. Brightwaters, NY: Windsor Books, 1985.
MLA-Zitierstil (9. Ausg.)Angell, George. Real-time Proven Commodity Spreads: The 20 Most Consistently Profitable Low-risk Trades. Windsor Books, 1985.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.