Dyfyniad APA

Barlow, G. (1921). Earthwork (9th ed.). Superintendent, Government Press.

Dyfyniad Arddull Chicago

Barlow, G.T. Earthwork. 9th ed. Allahabad: Superintendent, Government Press, 1921.

Dyfyniad MLA

Barlow, G.T. Earthwork. 9th ed. Superintendent, Government Press, 1921.

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