MacDowell, David William. <br/><br/>
Coin collections :  their preservation, classification and presentation. 

 - [Paris] :  Unesco,  [1978] 
<br/><br/>Bibliography: p. 78-82. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Numismatics -- Collectors and collecting.--Numismatics -- Collectors and collecting.