TY  - BOOK
ED  - American Petroleum Institute, API
TI  - Manual of petroleum measurement standards. Chapter 4- Proving systems: Section 3- Small volume provers
U1  - Carpeta II 
PY  - 1988///
CY  - Washington
PB  - American Petroleum Institute, API
KW  - Normas API
KW  - Normalización
ER  -