Dyfyniad APA

Northern Nigeria (Nigeria). Ministry of Economic Planning. (1964). Statistical yearbook. The Ministry.

Dyfyniad Arddull Chicago

Northern Nigeria (Nigeria). Ministry of Economic Planning. Statistical Yearbook. Kaduna, Nigeria: The Ministry, 1964.

Dyfyniad MLA

Northern Nigeria (Nigeria). Ministry of Economic Planning. Statistical Yearbook. The Ministry, 1964.

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