Gas fired muffle furnaces 

 - London  ; Heinemann Educational Books  , 1972 
 - 20p. 
<br/><br/><label>ISBN: </label>0435759051 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering<br/>Heat Engineering
<br/><br/><label>Dewey Class. No.: </label>621.47  / GAS