Samuels, C. T. (1969). John Updike. University of Minnesota Press.
Chicago-čujuhus (17. p.)Samuels, Charles Thomas. John Updike. Minneapolis, MN: University of Minnesota Press, 1969.
MLA-čujuhus (9. p.)Samuels, Charles Thomas. John Updike. University of Minnesota Press, 1969.
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