2012 - Ross Sterling Texan a Memoir By the Founder of Humble Oil and Refining Company (Paperback) → Hardcover ISBN-13: 9780292723689 ISBN-10: 0292723687 Genres: Biographies & Memoirs, History ? 2007 - Hugh Roy Cullen a Story of American Opportunity (Paperback) → Hardcover ISBN-13: 9780548390634 ISBN-10: 0548390630 ? 2007 - Ross Sterling Texan a Memoir By the Founder of Humble Oil and Refining Company (Hardcover) → Paperback ISBN-13: 9780292714427 ISBN-10: 0292714424 Genres: Biographies & Memoirs, Business & Money, History, Reference ? |