Hulley, J. (1991). Self-access spelling: An approach to structured spelling. National Extension College.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHulley, Jan. Self-access Spelling: An Approach to Structured Spelling. Cambridge, [Eng.]: National Extension College, 1991.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHulley, Jan. Self-access Spelling: An Approach to Structured Spelling. National Extension College, 1991.
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