Dyfyniad APA

Yates,Frank. (1981). Sampling methods for censuses and surveys (4.). Charles Griffin & Co. Ltd.

Dyfyniad Arddull Chicago

Yates,Frank. Sampling Methods for Censuses and Surveys. 4. London: Charles Griffin & Co. Ltd, 1981.

Dyfyniad MLA

Yates,Frank. Sampling Methods for Censuses and Surveys. 4. Charles Griffin & Co. Ltd, 1981.

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