Benthul, H. F., Anderson, E. A., Utech, A. M., Halat, K., & Biggy, M. V. (1980). Spell correctly (Teacher's ed.). Silver Burdett.
Lua i Stíl Chicago (17ú heag.)Benthul, Herman F., Edna A. Anderson, Arlys M. Utech, Karen Halat, agus M. Virginia Biggy. Spell Correctly. Teacher's ed. Morristown, N.J.: Silver Burdett, 1980.
Lua MLA (8ú heag.)Benthul, Herman F., et al. Spell Correctly. Teacher's ed. Silver Burdett, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.