EWALD, H. R. (1983). Writing As Process Invention And Convention Helen Rothschild Ewald. Charles E. Merril.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEWALD, Helen Rothschild. Writing As Process Invention And Convention Helen Rothschild Ewald. Charles E. Merril, 1983.
एमएलए (8वां संस्करण) प्रशस्ति पत्रEWALD, Helen Rothschild. Writing As Process Invention And Convention Helen Rothschild Ewald. Charles E. Merril, 1983.
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