Dyfyniad APA
Smith, G. (1988). Statistical reasoning (2nd ed.). Allyn and Bacon.
Dyfyniad Arddull Chicago
Smith, Gary. Statistical Reasoning. 2nd ed. Boston: Allyn and Bacon, 1988.
Dyfyniad MLA
Smith, Gary. Statistical Reasoning. 2nd ed. Allyn and Bacon, 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.