{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"An essay concerning the multiplication of mankind: together with another essay in political arithmetick, concerning the growth of the city of London: ... 1682. / By Sir William Petty ... (1698)","author_name":"William Petty","thumbnail_url":"https://www.ebooknetworking.net/books/124/094/big1240940017.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1240940017.html\">An essay concerning the multiplication of mankind: together with another essay in political arithmetick, concerning the growth of the city of London: ... 1682. / By Sir William Petty ... (1698)</a>","width":400,"height":300}