Barrett, H. (1981). Speaking practically. Holt Rinehart & Winstor.
Chicago-čujuhus (17. p.)Barrett, Harold. Speaking Practically. New York: Holt Rinehart & Winstor, 1981.
MLA-čujuhus (9. p.)Barrett, Harold. Speaking Practically. Holt Rinehart & Winstor, 1981.
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