EWALD, H. R. (1983). Writing As Process Invention And Convention Helen Rothschild Ewald. Charles E. Merril.
Lua i Stíl Chicago (17ú heag.)EWALD, Helen Rothschild. Writing As Process Invention And Convention Helen Rothschild Ewald. Charles E. Merril, 1983.
Lua MLA (8ú heag.)EWALD, Helen Rothschild. Writing As Process Invention And Convention Helen Rothschild Ewald. Charles E. Merril, 1983.
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