Tordo, Silvana. National oil companies and value creation / Silvana Tordo with Brandon S. Tracy and Noora Arfaa. - pages cm. - World Bank working paper ; no. 218 . - World Bank e-Library. . Includes bibliographical references and index. ISBN: 9780821388310 (alk. paper) 9780821388327 (electronic) LCCN: 2011020570 Subjects--Topical Terms: Business enterprises.Petroleum industry and trade. LC Class. No.: HD9560.5 / .T647 2011 Dewey Class. No.: 338.2/7282