Sladen, E. (1965). Modern commerce; a course in commerce for advanced students (7th ed.). Pitman.
Dyfyniad Arddull ChicagoSladen, Edward. Modern Commerce; a Course in Commerce for Advanced Students. 7th ed. London: Pitman, 1965.
Dyfyniad MLASladen, Edward. Modern Commerce; a Course in Commerce for Advanced Students. 7th ed. Pitman, 1965.
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