Não informado. (1970). Measurement in education. National Council on Measurement in Education.
Lua i Stíl Chicago (17ú heag.)Não informado. Measurement in Education. Lansing, Mich: National Council on Measurement in Education, 1970.
Lua MLA (8ú heag.)Não informado. Measurement in Education. National Council on Measurement in Education, 1970.
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