Britannica's concise pictured encyclopaedia vol.6 : GH 

 - Chicago:  William Benton,  1963. 
 - 634p.;  ill.;  26cm 
 - Britannica's concise pictured encyclopaedia .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopeadia
<br/><br/><label>Dewey Class. No.: </label>031  / BRI