Petroleos crudos de Venezuela y otros países.
Subtitle: Venezuelan and other world crude oils.  [Preparado por W.L. Nelson, Gustavo Thery Fombona, y José Sahagún Hernández]
Contributors: Sahagún Hernández, José,; Thery Fombona, Gustave,; Venezuela. Ministerio de Minas e Hidrocarburos
Published: 1952
Place of publication: Caracas
Language: spa
Number of pages: 4004
Subjects: Petroleum; Petroleum industry and trade
Other titles: Venezuelan and other world crude oils