SACHS, Jeffrey. The ages of globalization : geography, technology, and institutions. New York : Columbia University Press, [2020]. ©2020. 1 online zdroj (xiv, 262 stran). Dostupné na internetu: <https://ebookcentral.proquest.com/lib/ujep-ebooks/reader.action?docID=5763867> ISBN 978-0-231-55048-2.