Lua APA (7ú heag.)

Wyrick, J. (2002). Steps to writing well (8th ed.). Harcourt Brace College Pub.

Lua i Stíl Chicago (17ú heag.)

Wyrick, Jean. Steps to Writing Well. 8th ed. Fort Worth: Harcourt Brace College Pub, 2002.

Lua MLA (9ú heag.)

Wyrick, Jean. Steps to Writing Well. 8th ed. Harcourt Brace College Pub, 2002.

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