Dyfyniad APA

Bethlehem, J. (2009). Applied survey methods: A statistical perspective. John Wiley & Sons.

Dyfyniad Arddull Chicago

Bethlehem, Jelke. Applied Survey Methods: A Statistical Perspective. New Jersey: John Wiley & Sons, 2009.

Dyfyniad MLA

Bethlehem, Jelke. Applied Survey Methods: A Statistical Perspective. John Wiley & Sons, 2009.

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