Nielsen, E. R. Human Capital and Wealth before and after Capital in the Twenty-First Century: Eric R. Nielsen. After Piketty : the agenda for economics and inequality.(2017).

Nielsen, Eric R. "Human Capital and Wealth Before and After Capital in the Twenty-First Century: Eric R. Nielsen." After Piketty : The Agenda for Economics and Inequality.(2017) .

Nielsen, Eric R. "Human Capital and Wealth Before and After Capital in the Twenty-First Century: Eric R. Nielsen." After Piketty : The Agenda for Economics and Inequality.(2017), .