@book{1554,
	author = {Winter, George,. and Nilson, Arthur H.,},
	title = {Design of concrete structures /},
	publisher = {McGraw-Hill,},
	year = {c1979.},
	address = {New York :},
	edition = {9th ed.},
	note = {"A textbook originated by L. C. Urquhart and C. E. ORourke."}
}