YORKEY RICHARD. (1981). REPLY REQUESTED 30 LETTERS OF ADVICE. ADDISON-WESLEY.
Chicago-čujuhus (17. p.)YORKEY RICHARD. REPLY REQUESTED 30 LETTERS OF ADVICE. NEW YORK: ADDISON-WESLEY, 1981.
MLA-čujuhus (9. p.)YORKEY RICHARD. REPLY REQUESTED 30 LETTERS OF ADVICE. ADDISON-WESLEY, 1981.
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