Wright, R. (1976). Understanding statistics: An informal introduction for ... HBJ.
Lua i Stíl Chicago (17ú heag.)Wright, R.L.D. Understanding Statistics: An Informal Introduction for ... New York: HBJ, 1976.
Lua MLA (9ú heag.)Wright, R.L.D. Understanding Statistics: An Informal Introduction for ... HBJ, 1976.
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