@book{1357,
	author = {Case, John, and Chilver, Lord},
	title = {Strength of materials and structures },
	publisher = {Elsevier,},
	year = {2012.},
	address = {Amsterdam :},
	edition = {4th ed.},
	url = {https://books.google.com.pk/books?id=P0yyTfWJIEgC&printsec=frontcover&dq=Strength+of+materials+and+structures&hl=en&sa=X&redir_esc=y#v=onepage&q=Strength%20of%20materials%20and%20structures&f=false}
}