Dyfyniad APA

Berthouex, P. M., & .Brown, L. C. (1994). Statistics for environmental engineers. Lewis Publishers.

Dyfyniad Arddull Chicago

Berthouex, Paul Mac, and Linfield C. .Brown. Statistics for Environmental Engineers. Boca Raton: Lewis Publishers, 1994.

Dyfyniad MLA

Berthouex, Paul Mac, and Linfield C. .Brown. Statistics for Environmental Engineers. Lewis Publishers, 1994.

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