Ramamrutham, S. (2004). Strength of materials. Dhanpat Rai Publishing Co.
Dyfyniad Arddull ChicagoRamamrutham, S. Strength of Materials. N.Delhi: Dhanpat Rai Publishing Co, 2004.
Dyfyniad MLARamamrutham, S. Strength of Materials. Dhanpat Rai Publishing Co, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.