(1920). Journal of Institution of engineers (India): Civil Engineering Division. Institution of engineers.
Dyfyniad Arddull ChicagoJournal of Institution of Engineers (India): Civil Engineering Division. New Delhi: Institution of engineers, 1920.
Dyfyniad MLAJournal of Institution of Engineers (India): Civil Engineering Division. Institution of engineers, 1920.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.