Residential Natural Gas Market Survey, 2001 Data
Report / Survey by American Gas Association, 01/01/2003

Book by American Gas Association,

ANSI B109.3-2000 (R2008) for Rotary-Type Gas Displacement Meters
standard by American Gas Association, 01/01/2000

AGA Report No. 3, Orifice Metering of Natural Gas Part 2: Specification and Installation Requirements (2000)
Report / Survey by American Gas Association, 01/01/2000

Book by American Gas Association,

Residential Gas Market Survey, 2015 Data
Report / Survey by American Gas Association, 04/01/2017

2006 Handbook of Publicly Traded AGA Member Companies
Handbook / Manual / Guide by American Gas Association, 01/01/2006

Residential Gas Market Survey, 2012 Data
Report / Survey by American Gas Association, 02/01/2014

2013 Operating Section Proceedings
Conference Proceeding by American Gas Association,

Gas Facts, A Statistical Record of the Gas Industry
Report / Survey by American Gas Association, 2019