APA (7th ed.) Citation

Sessions, G. M. (1971). Traffic devices: Historical aspects thereof. Institute of Traffic Engineers.

Chicago Style (17th ed.) Citation

Sessions, Gordon M. Traffic Devices: Historical Aspects Thereof. Washington: Institute of Traffic Engineers, 1971.

MLA (9th ed.) Citation

Sessions, Gordon M. Traffic Devices: Historical Aspects Thereof. Institute of Traffic Engineers, 1971.

Warning: These citations may not always be 100% accurate.