E-CD    [computer files] 
 Environmental Science Database. 

 - Tucson, Ariz. :    Wellesley Hills, MA :    C.A.B. International ;    SilverPlatter Information, 
 - Computer laser optical disc ;    4 3/4 in. 
 - Quertarly. 
<br/><br/> Discribtion based on: 1973-1988 ; title from disc label. 
<br/><br/><br/>System requirments: Winspirs 5.0. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Life sciences--Abstracts--Data Bases<br/>Agronomy--Abstracts--Data bases
<br/><br/><label>Index Terms--Genre/Form: </label><br/>CD-ROMs.<br/>Computer network resources.