APA (7th ed.) Citation

Pan American Union. Department of Economic Affairs. Technical Unit on Tourism. (1967). Motoring in Mexico ([18th ed.].). Organization of American States.

Chicago Style (17th ed.) Citation

Pan American Union. Department of Economic Affairs. Technical Unit on Tourism. Motoring in Mexico. [18th ed.]. Washington: Organization of American States, 1967.

MLA (9th ed.) Citation

Pan American Union. Department of Economic Affairs. Technical Unit on Tourism. Motoring in Mexico. [18th ed.]. Organization of American States, 1967.