APA (7th ed.) Citation

Angell, G. (1985). Real-time proven commodity spreads: The 20 most consistently profitable low-risk trades. Windsor Books.

Chicago Style (17th ed.) Citation

Angell, George. Real-time Proven Commodity Spreads: The 20 Most Consistently Profitable Low-risk Trades. Brightwaters, NY: Windsor Books, 1985.

MLA (9th ed.) Citation

Angell, George. Real-time Proven Commodity Spreads: The 20 Most Consistently Profitable Low-risk Trades. Windsor Books, 1985.