Jaquet, E. (1970). Technique and history of the Swiss watch. London: Sping.
Dyfyniad Arddull ChicagoJaquet, Eugene. Technique and History of the Swiss Watch. London: Sping, 1970.
Dyfyniad MLAJaquet, Eugene. Technique and History of the Swiss Watch. London: Sping, 1970.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.