Annett, F. A.
Elevators electric and electrohydraulic elevators, escalators, moving sidewalks, and ramps - 3rd ed. - New York McGraw-Hill 1960 - xi, 388p.
Elevators : Engineering
621.877 / ANN/1960
Elevators electric and electrohydraulic elevators, escalators, moving sidewalks, and ramps - 3rd ed. - New York McGraw-Hill 1960 - xi, 388p.
Elevators : Engineering
621.877 / ANN/1960