Lua APA (7ú heag.)

Gellman, E. S. (1973). Statistics for teachers. Harper and Row.

Lua i Stíl Chicago (17ú heag.)

Gellman, Estelle S. Statistics for Teachers. New York: Harper and Row, 1973.

Lua MLA (9ú heag.)

Gellman, Estelle S. Statistics for Teachers. Harper and Row, 1973.

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