English :  Textbook 5 / 
G. Gasparyan. 
 - Yerevan :  Macmillan-Armenia,  2004. 
 - 160 pages :  ill. ;  24 cm. 
 - 42-8(075) (NLA) .
<br/><br/><label>ISBN: </label>9993072354 
<br/><br/><label>Universal Decimal Class. No.: </label>42-8(075) (NLA)