William Leffler

Petroleum Refining in Nontechnical Language – 4th Edition Author(s): William L. Leffler File Specification Extension PDF Pages 279 Size 6.50 MB ***

Petrochemicals in Nontechnical Language – 4th Edition Author(s): Donald L. Burdick, William L. Leffler File Specification Extension PDF Pages 412 Size 8.5 MB ***