TY  - BOOK
AU  - Gray, Murray R
TI  - Upgrading petroleum residues and heavy oils
SN  - 9780824792114
SN  - 94000803
U1  - 665.53 GRA 
PY  - 1994///
CY  - New York
PB  - Marcel Dekker
KW  - Petroleum - Refining
N1  - Includes bibliographical references (p. 320-338) and index
ER  -