@book{58479,
	author = {Sunley, J. G.},
	title = {Working stresses for structural timbers, for visually and ,mechanically graded material},
	publisher = {Her Majesty's Stationery Office,},
	year = {1965},
	series = {Forest Products Research. Bulletin},
	address = {London :},
	edition = {2 ed.}
}