Auger, Charles P. Information sources in grey literature / C.P. Auger. - 4th ed. - London : Bowker-Saur, 1998. - x, 177 p. ; 23 cm. - Guides to information sources . - Guides to information sources (London, England) . Includes bibliographical references and index. ISBN: 1857391942 RM294.66 LCCN: 97-033378 Subjects--Topical Terms: Technical literature.Technical reports.Grey literature.