Dyfyniad APA

WALKER, H. M. (1969). Elementary statistical methods. Holt, Rinehart and Winston.

Dyfyniad Arddull Chicago

WALKER, Helen M. Elementary Statistical Methods. New York: Holt, Rinehart and Winston, 1969.

Dyfyniad MLA

WALKER, Helen M. Elementary Statistical Methods. Holt, Rinehart and Winston, 1969.

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