{
	"version": "1.0",
	"cache_age": 3600,
	"type":"rich",
	"title": "Economic development in the Philadelphia region, 1810-1850",
	"url": "https://library.upol.cz/arl-upol/en/detail-upol_us_cat-m0072269-Economic-development-in-the-Philadelphia-region-18101850/"
}