TY  - BOOK
TI  - International trade in petroleum and its products 1929
T2  - Trade Promotion Series ; 
PY  - 1930///
CY  - Washington : 
PB  - Government Printing Office, 
N1  - Encab: U.S. Department of Commerce. R. P. Lamont, Secretary. Bureau of foreign and domestic Commerce. W. L. Cooper, Director
ER  -