APA (7th ed.) Citation

General Drafting Company & Humble Oil and Refining Company (Incorporated in Tex.). (1968). Texas 1968 happy motoring guide. General Drafting Co..

Chicago Style (17th ed.) Citation

General Drafting Company and Humble Oil and Refining Company (Incorporated in Tex.). Texas 1968 Happy Motoring Guide. Convent Station, N.J.: General Drafting Co., 1968.

MLA (9th ed.) Citation

General Drafting Company and Humble Oil and Refining Company (Incorporated in Tex.). Texas 1968 Happy Motoring Guide. General Drafting Co., 1968.