Dyfyniad APA

Berry, D. A., & Lindgren, B. W. (1981). Elementary statistics. Collier Macmillan Publishers.

Dyfyniad Arddull Chicago

Berry, Donald A., and Bernard W. Lindgren. Elementary Statistics. London: Collier Macmillan Publishers, 1981.

Dyfyniad MLA

Berry, Donald A., and Bernard W. Lindgren. Elementary Statistics. Collier Macmillan Publishers, 1981.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.