Bailey's Industrial Oil and Fat Products, 5 Volume Set
John Wiley & Sons, January, 1996.

The Color of Oil : The History, the Money and the Politics of the World's Biggest Business
Round Oak Publishing Company, 01 March, 2000.

Petroleum Production Systems (Prentice Hall Petroleum Engineering Series)
Prentice Hall PTR, January, 1994.

The Complete Book of Essential Oils and Aromatherapy
New World Library, September, 1991.

Forbidden Truth: U.S.-Taliban Secret Oil Diplomacy, Saudi Arabia and the Failed Search for bin Laden
Thunder's Mouth Press / Nation Books , 10 July, 2002.

The Omega Rx Zone: The Miracle of the New High-Dose Fish Oil
Regan Books, 07 May, 2002.

The Complete Book of Incense, Oils & Brews
Llewellyn Publications, September, 1989.

Petroleum Well Construction
John Wiley & Son Ltd, June, 1998.

The Illustrated Encyclopedia of Essential Oils: The Complete Guide to the Use of Oils in Aromatherapy and Herbalism
Element Books Ltd., December, 1995.