Wyrick, J. (2017). Steps to writing well: With additional readings (Tenth edition.). Cengage Learning.
Lua i Stíl Chicago (17ú heag.)Wyrick, Jean. Steps to Writing Well: With Additional Readings. Tenth edition. Boston, Massachusetts: Cengage Learning, 2017.
Lua MLA (9ú heag.)Wyrick, Jean. Steps to Writing Well: With Additional Readings. Tenth edition. Cengage Learning, 2017.
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