Abraham, Herbert. <br/><br/>
Asphalts and allied substances :  their occurrence, modes of production, uses in the arts, and methods of testing / 
Herbert Abraham. 
 - 5th ed. 
 - London :  D. Van Nostrand,  1954. 
 - Vols. :  ill. ;  24 cm. 
<br/><br/>V. 1- Raw materials and manufactured products ;  
<br/><br/>337  337 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Asphalt<br/>Bitumen.<br/>Asphalt--Bibliography.
<br/><br/><label>Dewey Class. No.: </label>665.4 / A82a