Lua APA (7ú heag.)

KOTTMEYER, W., & CLAUS, A. (1976). Basic goals in spelling.-- 5th ed. McGraw-Hill Book.

Lua i Stíl Chicago (17ú heag.)

KOTTMEYER, William, agus Audrey CLAUS. Basic Goals in Spelling.-- 5th Ed. New York: McGraw-Hill Book, 1976.

Lua MLA (9ú heag.)

KOTTMEYER, William, agus Audrey CLAUS. Basic Goals in Spelling.-- 5th Ed. McGraw-Hill Book, 1976.

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