Παραπομπή σε μορφή APA (7η εκδ.)

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).

Παραπομπή σε μορφή Chicago (17η εκδ.)

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) .

Παραπομπή σε μορφή MLA (8th εκδ.)

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), .