Lua APA (7ú heag.)

Kurtz, N. R. (1983). Introduction to social statistics. McGraw-Hill.

Lua i Stíl Chicago (17ú heag.)

Kurtz, Norman R. Introduction to Social Statistics. Auckland, N.Z: McGraw-Hill, 1983.

Lua MLA (9ú heag.)

Kurtz, Norman R. Introduction to Social Statistics. McGraw-Hill, 1983.

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