500 <br/>
H 75 
   Holmes Neal J. <br/>
                  Gateways to science / 
Neal J.Holmes., John B.Leake., Mary W.Shaw. 
 - USA.:  McGraw-Hill,  1985. 
 - 389p. -
<br/><br/><br/>english 
<br/><br/>                 <label>ISBN: </label>0070299145 
<br/><br/>                 <label>Түлхүүр үг: </label>life science, earth & space science, physical science,