Dyfyniad APA

Marvin, F. S. (1917). Progress and history (2d impression.). H. Milford, Oxford University Press.

Dyfyniad Arddull Chicago

Marvin, Francis Sydney. Progress and History. 2d impression. London ; New York: H. Milford, Oxford University Press, 1917.

Dyfyniad MLA

Marvin, Francis Sydney. Progress and History. 2d impression. H. Milford, Oxford University Press, 1917.

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