ORNSTEIN, A. C., & LEVINE, D. U. (1984). An introduction to the foundations of education (Ed.3.). Houghton Mifflin.
Lua i Stíl Chicago (17ú heag.)ORNSTEIN, Allan C., agus Daniel U. LEVINE. An Introduction to the Foundations of Education. Ed.3. Boston: Houghton Mifflin, 1984.
Lua MLA (9ú heag.)ORNSTEIN, Allan C., agus Daniel U. LEVINE. An Introduction to the Foundations of Education. Ed.3. Houghton Mifflin, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.