@book{29926,
	author = {Ramamrutham, S. and Narayanan, R.},
	title = {Strength of Materials : for engineering degree, diploma and A.M.I.E. student / },
	publisher = {: Dhanpat Rai Publishing},
	year = {, 2019},
	address = {.- New Delhi},
	edition = {20th ed}
}