Tohutoro APA (7th ed.)
Ingram, J. A. (1977). Elementary statistics. Cummings Pub. Co..
Tohutoru Kātū Chicago (17th ed.)
Ingram, John A. Elementary Statistics. Menlo Park, Calif.: Cummings Pub. Co., 1977.
Tohutoro MLA (9th ed.)
Ingram, John A. Elementary Statistics. Cummings Pub. Co., 1977.
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