Dyfyniad APA

Kohler, U., & Kreuter, F. (2012). Data analysis using stata (3rd ed.). Stata Press.

Dyfyniad Arddull Chicago

Kohler, Ulrich, and Frauke Kreuter. Data Analysis Using Stata. 3rd ed. College Station, Tex.: Stata Press, 2012.

Dyfyniad MLA

Kohler, Ulrich, and Frauke Kreuter. Data Analysis Using Stata. 3rd ed. Stata Press, 2012.

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