TY  - BOOK
AU  - Hawley,Mones E.
TI  - Coal
SN  - 0879332190 :
U1  - 553.208 
PY  - 1976///
CY  - Stroudsburg
PB  - Dowden, Hutchinson & Ross
KW  - Coal
N1  - Includes bibliographical references and index; Vol.1. Social, economic and environmental aspects -v. 2. Scientific and technical aspects
ER  -