Research centers directory. - 9th ed. - Detroit, Gale Research Co. 1960, 1984. - 1308 p. 29 cm. ISBN: 0810304597 ISSN: 0080-1518 LCCN: Nat. Bib. Agency Control No.: R23270000 DNLM Subjects--Topical Terms: Resarch centers--DirectoryAraştırma merkezleri--Sözlükler LC Class. No.: AS25 / .D5 Dewey Class. No.: 003.378 / RES