TY  - BOOK
AU  - Sokolov,V.
AU  - Purto,Victor
AU  - Zellikoff,L.
TI  - Petroleum: Transleted from the Russian 
CY  - Moscow
PB  - Mir Publishers.
KW  - Petroleum
N1  - Оригинал; В.А. Соколов; 1-st publ. 1972; Москва, Недра
ER  -