Phillips, R. S. (1958). Electric lifts: A manual on the current practice in the design, installation, working, and maintenance of lifts (4th ed.). London: Sir Isaac Pitman & Sons.
Παραπομπή Chicago StylePhillips, R. S. Electric Lifts: A Manual On the Current Practice in the Design, Installation, Working, and Maintenance of Lifts. 4th ed. London: Sir Isaac Pitman & Sons, 1958.
Παραπομπή MLAPhillips, R. S. Electric Lifts: A Manual On the Current Practice in the Design, Installation, Working, and Maintenance of Lifts. 4th ed. London: Sir Isaac Pitman & Sons, 1958.
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