the Carnegie Library of Pittsburgh Science and Technology Department. <br/><br/>
Science and technology desk reference  1,500 answers to frequently-asked or difficult-to-answer questions /  [[Book] :] 
the Carnegie Library of Pittsburgh Science and Technology Department. 
 - Washington, D.C. :  Gale Research,  c1993. 
 - xviii, 741 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references (p. 639-666) and index. 
<br/><br/> All Ages. 
<br/><br/><label>ISBN: </label>0810388847  0810388847 
<br/><br/><label>LCCN: </label>92075423  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Miscellanea.<br/>Technology--Miscellanea.
<br/><br/><label>LC Class. No.: </label>Q173  / .S397 1993 
<br/><br/><label>Dewey Class. No.: </label>603.'076 
<br/><br/><label>National Library of Medicine Call No.: </label> / CS