Kottmeyer, W., & Claus, A. (1968). Basic goals in spelling (3rd ed.). Webster Division, McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Kottmeyer, William, agus Audrey Claus. Basic Goals in Spelling. 3rd ed. St. Louis ; New York [etc.]: Webster Division, McGraw-Hill, 1968.
Lua MLA (8ú heag.)Kottmeyer, William, agus Audrey Claus. Basic Goals in Spelling. 3rd ed. Webster Division, McGraw-Hill, 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.