Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.