Murphy, J. (1956). Secrets of succesful selling. Engelwood giftsPrentice Hall.
Chicago-čujuhus (17. p.)Murphy, John. Secrets of Succesful Selling. NULL: Engelwood giftsPrentice Hall, 1956.
MLA-čujuhus (9. p.)Murphy, John. Secrets of Succesful Selling. Engelwood giftsPrentice Hall, 1956.
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