Παραπομπή APA
Grebby, J. K. (1950). Modern business training and the methods and machinery of business: A complete text-book for students (7th edition (revised and reset).). London: Macdonald and Evans.
Παραπομπή Chicago StyleGrebby, John King. Modern Business Training and the Methods and Machinery of Business: A Complete Text-book for Students. 7th edition (revised and reset). London: Macdonald and Evans, 1950.
Παραπομπή MLAGrebby, John King. Modern Business Training and the Methods and Machinery of Business: A Complete Text-book for Students. 7th edition (revised and reset). London: Macdonald and Evans, 1950.
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