Cooley, W. W., & Lohnes, P. R. (1976). Evaluation research in education. Irvington Publishers : distributed by Halsted Press.
Lua i Stíl Chicago (17ú heag.)Cooley, William W., agus Paul R. Lohnes. Evaluation Research in Education. New York: Irvington Publishers : distributed by Halsted Press, 1976.
Lua MLA (8ú heag.)Cooley, William W., agus Paul R. Lohnes. Evaluation Research in Education. Irvington Publishers : distributed by Halsted Press, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.