Rapeer, L. W. (1918). How to teach elementary subjects. C. Scribner's sons.
Lua i Stíl Chicago (17ú heag.)Rapeer, Louis Win. How to Teach Elementary Subjects. New York, Chicago [etc.]: C. Scribner's sons, 1918.
Lua MLA (8ú heag.)Rapeer, Louis Win. How to Teach Elementary Subjects. C. Scribner's sons, 1918.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.