Dyfyniad APA

(1983). Dictionary of the history of science. London: The Macmillan Press.

Dyfyniad Arddull Chicago

Dictionary of the History of Science. London: The Macmillan Press, 1983.

Dyfyniad MLA

Dictionary of the History of Science. London: The Macmillan Press, 1983.

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