TY  - BOOK
ED  - American Petroleum Institute, API
TI  - Manual of petroleum measurement standards. Chapter 14- Natural gas fluids measurement: Section 3- Concentric, square edged orifice meters. Part 1- General equations and uncertainty guidelines
U1  - Carpeta XI BIS 
PY  - 1990///
CY  - Washington
PB  - American Petroleum Institute, API
KW  - Normalización
KW  - Normas API
ER  -