Adams, Stephen R. Information sources in patents / Adams, Stephen R. - 2nd completely new ed. - München [Germany] : K.G. Saur, 2006. - xx, 236 p. : il. - Guides to information sources . ISBN: 3598244436 (rústica) Subjects--Topical Terms: Patentes--Servicios de información LC Class. No.: T210 / A43 2006