APA (7th ed.) Citation

Railway signaling and communications. Simmons-Boardman Pub. Corp. [etc.].

Chicago Style (17th ed.) Citation

Railway Signaling and Communications. Chicago: Simmons-Boardman Pub. Corp. [etc.].

MLA (9th ed.) Citation

Railway Signaling and Communications. Simmons-Boardman Pub. Corp. [etc.].

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