Schwartz, Jack. How to get more business by telephone. [electronic resource] . — New York, : Business Bourse,, 1953.. — 246 p. 21 cm.
"An outgrowth of a revision and merger with ... Selling by telephone, by J. George Frederick, published in 1928."
53037849
Telephone selling.
HF5440 / .S3
658.8