Não informado. (1978). Viewpoints in teaching and learning. Indiana University, School of Education.
Lua i Stíl Chicago (17ú heag.)Não informado. Viewpoints in Teaching and Learning. Bloomington, Ind: Indiana University, School of Education, 1978.
Lua MLA (8ú heag.)Não informado. Viewpoints in Teaching and Learning. Indiana University, School of Education, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.