Dyfyniad APA

Walpole, R. E. (1982). Introduciton to statistics (3rd ed.). Pearson Education.

Dyfyniad Arddull Chicago

Walpole, Ronald E. Introduciton to Statistics. 3rd ed. Jurong, Singapore: Pearson Education, 1982.

Dyfyniad MLA

Walpole, Ronald E. Introduciton to Statistics. 3rd ed. Pearson Education, 1982.

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