APA (7th ed.) Citation

American Society of Mechanical Engineers. A17 Elevator and Escalator Committee, Canadian Standards Association. B44 Technical Committee on the Elevator Safety Code, & American National Standards Institute. (2013). Safety code for elevators and escalators: Includes requirements for elevators, escalators, dumbwaiters, moving walks, material lifts, and dumbwaiters with automatic transfer devices (Twentieth edition.). American Society of Mechanical Engineers.

Chicago Style (17th ed.) Citation

American Society of Mechanical Engineers. A17 Elevator and Escalator Committee, Canadian Standards Association. B44 Technical Committee on the Elevator Safety Code, and American National Standards Institute. Safety Code for Elevators and Escalators: Includes Requirements for Elevators, Escalators, Dumbwaiters, Moving Walks, Material Lifts, and Dumbwaiters with Automatic Transfer Devices. Twentieth edition. New York, NY: American Society of Mechanical Engineers, 2013.

MLA (9th ed.) Citation

American Society of Mechanical Engineers. A17 Elevator and Escalator Committee, et al. Safety Code for Elevators and Escalators: Includes Requirements for Elevators, Escalators, Dumbwaiters, Moving Walks, Material Lifts, and Dumbwaiters with Automatic Transfer Devices. Twentieth edition. American Society of Mechanical Engineers, 2013.