Extending aggregate resources :  a symposium / 
sponsored by ASTM Committee D-4 on Road and Paving Materials, Orlando, Fla., 10 Dec. 1980 ; W. W. Hotaling, Jr., symposium chairman 
 - Philadelphia, Pa  ASTM,  1982 
 - 212 p. :  ill. ;  24 cm. 
 - ASTM special technical publication ;  774 .
<br/><br/> 'ASTM publication code number (PCN) 04-774000-08' 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Road materials--Congresses<br/>Aggregates (Building materials)--Congresses