AGA Report No. 3, Orifice Metering of Natural Gas Part 1: General Equations & Uncertainty Guidelines (1990)
Report / Survey by American Gas Association, 01/01/1990

An Economic Analysis of Consumer Response to Natural Gas Prices
Report / Survey by American Gas Association, 03/01/2007

Book by American Gas Association, 01/01/1986

Self-Operated Diaphragm-Type Natural Gas Service Regulators: For Nominal Pipe Size 1 1/4 Inches (32MM) and Smaller With Outlet Pressures Of 2 PSI (13.8 KPA) and Less (ANSI B109.4)
standard by American Gas Association, 12/01/2016

Book by American Gas Association, 12/01/2010

AGA Report No. 8, Part 2, Thermodynamic Properties of Natural Gas and Related Gases, GERG-2008 Equation of State
Report / Survey by American Gas Association, 04/25/2017

Orifice Metering of Natural Gas and Other Related Hydrocarbon Fluids – Concentric, Square-edged Orifice Meters; Part 3: Natural Gas Applications
Report / Survey by American Gas Association, 11/01/2013

Load Forecasting Manual
Handbook / Manual / Guide by American Gas Association, 01/01/1995

AGA Report No. 9, Measurement of Gas by Multipath Ultrasonic Meters (2007)
Report / Survey by American Gas Association, 04/01/2007

AGA Report No. 3, Part 2: Orifice Metering of Natural Gas and Other Related Hydrocarbon Fluids – Concentric, Square-edged Orifice Meters, Specifications and Installation Requirements (Includes Errata, 2017)
Report / Survey by American Gas Association, 03/01/2016