Cita APA (7a ed.)

Universal Portland Cement Co. Cutting the Traffic Knot. Universal Portland Cement Co. , [1927].

Cita Chicago Style (17a ed.)

Universal Portland Cement Co. Cutting the Traffic Knot. Chicago, Pittsburgh [etc.]: Universal Portland Cement Co. , [1927].

Cita MLA (9a ed.)

Universal Portland Cement Co. Cutting the Traffic Knot. Universal Portland Cement Co. , [1927].