@book{119809,
	author = {Verma, Vijay. and International Programme on the Elimination of Child Labour (IPEC)},
	title = {Sampling for household-based surveys of child labour},
	publisher = {International Labour Organization,},
	year = {2008.},
	address = {Geneva :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10512067}
}