Kottmeyer, W. (1988). Basic goals in spelling. Webster Division, McGraw Hill.
Lua i Stíl Chicago (17ú heag.)Kottmeyer, William. Basic Goals in Spelling. New York: Webster Division, McGraw Hill, 1988.
Lua MLA (8ú heag.)Kottmeyer, William. Basic Goals in Spelling. Webster Division, McGraw Hill, 1988.
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