Dyfyniad APA

Kirk, R. E. (1999). Statistics: An introduction (4th ed.). Harcourt Brace College Publishers.

Dyfyniad Arddull Chicago

Kirk, Roger E. Statistics: An Introduction. 4th ed. London: Harcourt Brace College Publishers, 1999.

Dyfyniad MLA

Kirk, Roger E. Statistics: An Introduction. 4th ed. Harcourt Brace College Publishers, 1999.

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