TY  - BOOK
ED  - American Petroleum Institute, API
TI  - Manual of petroleum measurement standards. Chapter 21- Flow measurement using electronic metering systems: Section 1- Electronic gas measurement
U1  - Carpeta XV 
PY  - 2013///
CY  - Washington
PB  - American Petroleum Institute, API
KW  - Normas API
KW  - Normalización
ER  -