TY  - BOOK
AU  - Leythaeuser,D.
AU  - Schaefer,R.G.
AU  - Schaefer,R.G.
ED  - Nuclear Research Centre. Institute of Petroleum and Organic Geochemistry
ED  - World Petroleum Congress (12th : 1987 26 abr/1 may : Houston)
ED  - Nuclear Research Centre. Institute of Petroleum and Organic Geochemistry
TI  - On the primary migration of petroleum
U1  - 060-665.5 W938 1987 
ER  -