Office Appliance and Business Equipment Trades Association. (1956). The Manual of modern business equipment. Macdonald & Evans.
Chicago-viite (17. p.)Office Appliance and Business Equipment Trades Association. The Manual of Modern Business Equipment. London: Macdonald & Evans, 1956.
MLA-viite (8. p.)Office Appliance and Business Equipment Trades Association. The Manual of Modern Business Equipment. Macdonald & Evans, 1956.
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