At head of title, 1919-62: American Gas Association.
Bibliographies are included in many of the volumes.
Proceedings of the 1st-4th annual conventions, 1919-22, were issued in separate sections for each year: 1) General sessions; 2) Accounting section; 3) Commercial section; 4) Manufacturers' section; 5) Technical section. Beginning with 1923, the proceedings of all sections are combined in an annual volume.
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