Watson-Delestree A. Anne. (1992). Basic Telephone Training: A Basic Course in Telephone Language and Skills. Boston, Thomson, 1992.
Chicago-viite (17. p.)Watson-Delestree A. Anne. Basic Telephone Training: A Basic Course in Telephone Language and Skills. Boston, Thomson, 1992, 1992.
MLA-viite (9. p.)Watson-Delestree A. Anne. Basic Telephone Training: A Basic Course in Telephone Language and Skills. Boston, Thomson, 1992, 1992.
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