Westcott, H. P. (1916). Handbook of casinghead gas (1st. ed.). Metric metal works.
Lua i Stíl Chicago (17ú heag.)Westcott, Henry Palmer. Handbook of Casinghead Gas. 1st. ed. Erie, Pa.: Metric metal works, 1916.
Lua MLA (8ú heag.)Westcott, Henry Palmer. Handbook of Casinghead Gas. 1st. ed. Metric metal works, 1916.
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