Asphaltos e sapropelitos
By: por S. Fróes Abreu e R. Roquette.
Contributors: Roquette, R.
Publisher: Ministerio do Trabalho, Industria e Commercio, Instituto Nacional de Technologia
Published: 1937
Place of publication: Rio de Janeiro
Language: por
Number of pages: 84
Subjects: Asphalt.; Sapropelites.; Distillation, Destructive.; Mines and mineral resources -- Brazil.
Notes: In Portuguese with summary in English.