Coal age 

 - Mensual, Jul. 1927-<Oct. 1977> 
 - Semanal, Oct. 1911-Jun. 1927 
<br/><br/> Inicia en 1911 con el vol. 1, no. 1, cierra en 1988 con el vol. 93, no. 12 
<br/><br/> Applied science & technology index  Chemical abstracts  Engineering index  Excerpta medica  Business periodicals index  Chemical industry note  CIS abstracts  Energy information abstracts  Coal abstracts 
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<br/><br/>Fusionado con: Coal mining (Chicago, Il.), para formar: Coal (Chicago, Il. : 1988) 
<br/><br/><label>ISSN: </label>0009-9910 
 = Coal age  (New York, N.Y.) 
 = Coal age  (N.Y. N.Y.) 
<br/><br/><label>CODEN: </label>COLAA7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hulla--Minas y mineria
<br/><br/><label>LC Class. No.: </label>TN1 
<br/><br/><label>Dewey Class. No.: </label>622.33