Pedretti, Carlo. <br/><br/>
Leonardo, a study in chronology and style / 
Carlo Pedretti. 
 - New York :  Johnson Reprint Corp,  1982. 
 - 192 p. :  ill ;  25 cm. 
<br/><br/>Includes bibliography and index. 
<br/><br/> Open. 
<br/><br/><label>ISBN: </label>0384452817 
<br/><br/><label>LCCN: </label>8183204 
<br/><br/><label>Subjects--Personal Names: </label><br/>Leonardo,da Vinci, 1452-1519.