Dyfyniad APA

Blacker C.P. (1952). Eugenics Galton and After (1952.). Gerald Duckworth and Co.Ltd.

Dyfyniad Arddull Chicago

Blacker C.P. Eugenics Galton and After. 1952. London: Gerald Duckworth and Co.Ltd, 1952.

Dyfyniad MLA

Blacker C.P. Eugenics Galton and After. 1952. Gerald Duckworth and Co.Ltd, 1952.

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