Fernald, G. M. (1943). Remedial techniques in basic school subjects. McGraw-Hill book company, inc..
Lua i Stíl Chicago (17ú heag.)Fernald, Grace M. Remedial Techniques in Basic School Subjects. New York, London: McGraw-Hill book company, inc., 1943.
Lua MLA (8ú heag.)Fernald, Grace M. Remedial Techniques in Basic School Subjects. McGraw-Hill book company, inc., 1943.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.