Clark, John O.E.,  <br/><br/>
Timeless of science and technology (2)   classical and early medieval science 849 B.c.-999 A.D. 

 - 64 pages :   colour illustrations ;   29 cm 
 - Timeless of science and technology .
 - Timeless of science and technology .
<br/><br/> Vol. 2 
<br/><br/><label>ISBN: </label>1840441992 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Discoveries in science.
<br/><br/><label>Dewey Class. No.: </label>509