Lua APA (7ú heag.)

Não informado. (1911). Lubrication. California Texas Oil Company.

Lua i Stíl Chicago (17ú heag.)

Não informado. Lubrication. New York: California Texas Oil Company, 1911.

Lua MLA (8ú heag.)

Não informado. Lubrication. California Texas Oil Company, 1911.

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