Dyfyniad APA

Principles and recommendations for the 1970 population censuses.

Dyfyniad Arddull Chicago

Principles and Recommendations for the 1970 Population Censuses. New York : United Nations, 1969.

Dyfyniad MLA

Principles and Recommendations for the 1970 Population Censuses.

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