Grant, Edward. <br/><br/>
Physical science in the middle ages   
by Edward Grant. 
 - New York  Cambride University Press  1977 
 - xi, 128p. 
<br/><br/><label>ISBN: </label>0 521 29294 8 
<br/><br/><label>Dewey Class. No.: </label>500.209021  / N77