Dyfyniad APA

Holgate, H. (1961). Exchange Arithmetic/5e (5th ed.). Sir Isaac pitman and sons limited.

Dyfyniad Arddull Chicago

Holgate, H.C.F. Exchange Arithmetic/5e. 5th ed. London: Sir Isaac pitman and sons limited, 1961.

Dyfyniad MLA

Holgate, H.C.F. Exchange Arithmetic/5e. 5th ed. Sir Isaac pitman and sons limited, 1961.

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