@book{8860,
	author = {Astill, A.W. and Martin, L. H.},
	title = {Elementary structural design in concrete to cp110 /},
	publisher = {Hodder Arnold,},
	year = {1975.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/0713133570/chopaconline-20}
}