Guide to economic indicators : making sense of economics. 7th ed. Hoboken : Wiley, 2011. online [xi, 244 p.]. Dostupné na : <https://search.ebscohost.com/login.aspx?direct=true&db=nlebk&AN=401053&lang=sk&site=ehost-live&scope=site> ISBN 978-1-118-16321-4.