Vries, Leonard de <br/><br/>
The second book of experiments / 
Leonard de Vries. 
 - London:   Murray,   1972.  
 - 104 p. :  ill. ;  27 cm. 
<br/><br/><label>ISBN: </label>0719503132 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Experiments
<br/><br/><label>Dewey Class. No.: </label>507.24