Ericson, R. C. (1979). measuring student growth: Tecniques and procedurs for occupational education. Allyn and Bacon.
Lua i Stíl Chicago (17ú heag.)Ericson, Richard C. Measuring Student Growth: Tecniques and Procedurs for Occupational Education. Allyn and Bacon, 1979.
Lua MLA (8ú heag.)Ericson, Richard C. Measuring Student Growth: Tecniques and Procedurs for Occupational Education. Allyn and Bacon, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.