MacDowall, David William. <br/><br/>
Coin collections :  their preservation, classification and presentation / 
David William MacDowall. 
 - Paris :  Unesco,  1978. 
 - 82 p., [11] leaves of plates :  ill. ;  21 cm. 
<br/><br/>Bibliography: p. [78]-82. 
<br/><br/><label>ISBN: </label>9231016199 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coins--Collectors and collecting.<br/>Coins--Preservation.
<br/><br/><label>Dewey Class. No.: </label>737.4075  / MAC 1978