Oil shale study in Brazil
Subtitle: Agreement between the United States of America and Brazil, modifying and extending Agreement of August 16, 1950, effected by exchanges of notes signed at Rio de Janeiro March 31, May 14, June 27, and August 20, 1952, entered into force August 20, 1952; operative retroactively from February 16, 1952
Series: United States. Dept. of State. Publication -- 5047; Treaties and other international acts series -- 2706; Department of State publication -- 5047
Publisher: U.S. Govt. Print. Off.
Published: 1953
Place of publication: Washington
Language: eng
Subjects: Petroleum; American Technical assistance
Work titles: Treaties, etc