Boehm, A. E., & Weinberg, R. A. (1997). The classroom observer: Developing observation skills in early childhood settings (3rd ed.). Teachers College Press, Columbia University.
Lua i Stíl Chicago (17ú heag.)Boehm, Ann E., agus Richard A. Weinberg. The Classroom Observer: Developing Observation Skills in Early Childhood Settings. 3rd ed. New York: Teachers College Press, Columbia University, 1997.
Lua MLA (9ú heag.)Boehm, Ann E., agus Richard A. Weinberg. The Classroom Observer: Developing Observation Skills in Early Childhood Settings. 3rd ed. Teachers College Press, Columbia University, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.