Eckersley, C. (1964). A commercial course for foreign students™. Longman.
Chicago-čujuhus (17. p.)Eckersley, C.E. A Commercial Course for Foreign Students™. London: Longman, 1964.
MLA-čujuhus (9. p.)Eckersley, C.E. A Commercial Course for Foreign Students™. Longman, 1964.
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