Boletín de Minas Y Petróleo. No. 28-91/96. Abril./jun. 1931-jul./dic. 1936 COLOMBIA. Republic of Colombia, 1886- . Ministerio de Industrias. Departamento de Minas y Petróleo Published: 1932 Total Pages: Get eBook
Boletín de minas y petróleos Colombia. Departamento de Minas y Petróleos Published: 1952 Total Pages: 226 Get eBook
Boletín de minas y petróleo. tom. 16. no. 7, etc. jul. 1946, etc México. Secretaría de la Economía Nacional. Dirección General de Minas y Petróleo Published: 1946 Total Pages: Get eBook
Dictionary Catalog of the Department Library United States. Department of the Interior. Library Published: 1967 Total Pages: 836 Get eBook
Boletin de minas y petroleo Chile. Minas y Petróleo Departamento de Published: 1937 Total Pages: 832 Get eBook
A Catalog of Books Represented by Library of Congress Printed Cards Issued to July 31, 1942 Published: 1942 Total Pages: 652 Get eBook
