Lua APA (7ú heag.)

Spiegel, M. (1972). Theory and problems of statistics. McGraw Hill.

Lua i Stíl Chicago (17ú heag.)

Spiegel, Murray. Theory and Problems of Statistics. NewYork: McGraw Hill, 1972.

Lua MLA (9ú heag.)

Spiegel, Murray. Theory and Problems of Statistics. McGraw Hill, 1972.

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