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WILLIAM L. LEFFLER

QUIETLY DOING BUSINESS AS

VENUS CONSULTING

HOUSTON, TEXAS

Short Courses in Nontechnical Language: PETROLEUM REFINING PETROCHEMICALS  UPSTREAM-DOWNSTREAM IN A DAY O & G PRODUCTION		STRATEGY DEVELOPMENT  IN THE PETROLEUM BUSINESS BACKGROUND AND CREDENTIALS
	PUBLISHED BOOKS AND WALL CHARTS

contact me at: leffler@hal-pc.org