Libraries, information centers and databases in science and technology :  a world guide=  ein internationales Verzeichnis / 
editorial director : Helga Lengenfelder ... [et al.] 
 - Munchen :  K.G. Saur,  1984 
 - xxv, 560p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technical libraries--Directories.<br/>Scientific libraries--Directories.