TY  - BOOK
AU  - Norman,Donald A.
AU  - Norman,Donald A.
ED  - American Petroleum Institute, API
TI  - Indefinite pricing provisions in natural gas contracts
U1  - 660.061.3 A512 034 0002056 
PY  - 1984///
CY  - Washington
PB  - American Petroleum Institute, API
KW  - Mercado de gas natural
KW  - Precios de gas natural
ER  -