Dyfyniad APA

Kottmeyer, W., & Claus, A. (1968). Basic goals in spelling (3rd ed.). Webster Division, McGraw-Hill.

Dyfyniad Arddull Chicago

Kottmeyer, William, and Audrey Claus. Basic Goals in Spelling. 3rd ed. St. Louis ; New York [etc.]: Webster Division, McGraw-Hill, 1968.

Dyfyniad MLA

Kottmeyer, William, and Audrey Claus. Basic Goals in Spelling. 3rd ed. Webster Division, McGraw-Hill, 1968.

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