Vries, Leonard De <br/><br/>
Third book of experiments / 
by Leonard De Vries 
 - London :  Carousal books,  1965. 
 - 143p. : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Experiments
<br/><br/><label>Dewey Class. No.: </label>502.02  / VRI.T