Petrov, I. A. <br/><br/>
Scale studies for bassoon   [Música impresa] /  
Petrov ; [edited by Gustave] Dherin. 
 - New York City :   International Music Co.,   c1958. 
 - 1 partitura   (20 p.) ;   31 cm. 
<br/><br/><br/>International Music 1525 
<br/><br/><label>LCCN: </label>1579 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fagot---Estudis i exercicis.