Dyfyniad APA

Ritchie, A. D. (1965). Studies in the history and methods of the sciences (Reprinted.). The Edinburgh University Press.

Dyfyniad Arddull Chicago

Ritchie, Arthur David. Studies in the History and Methods of the Sciences. Reprinted. Edinburgh: The Edinburgh University Press, 1965.

Dyfyniad MLA

Ritchie, Arthur David. Studies in the History and Methods of the Sciences. Reprinted. The Edinburgh University Press, 1965.

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