Roberts, E. V. (1988). Writing themes about literature (6th ed.). Prentice-Hall.
Cita Chicago Style (17a ed.)Roberts, Edgar V. Writing Themes About Literature. 6th ed. Englewood Cliffs, New Jersey: Prentice-Hall, 1988.
Cita MLA (9a ed.)Roberts, Edgar V. Writing Themes About Literature. 6th ed. Prentice-Hall, 1988.
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