Annett, F. A. (1960). Elevators: Electric and electrohydraulic elevators, escalators, moving sidewalks and ramps. McGraw-Hill.
Cita Chicago Style (17a ed.)Annett, F. A. Elevators: Electric and Electrohydraulic Elevators, Escalators, Moving Sidewalks and Ramps. Nueva York: McGraw-Hill, 1960.
Cita MLA (9a ed.)Annett, F. A. Elevators: Electric and Electrohydraulic Elevators, Escalators, Moving Sidewalks and Ramps. McGraw-Hill, 1960.
Precaución: Estas citas no son 100% exactas.