Stern, S. (1999). Do scientists pay to be scientistsn. National Bureau of Economic Research.
Citazione stile Chigago Style (17a edizione)Stern, Scott. Do Scientists Pay to Be Scientistsn. Cambridge: National Bureau of Economic Research, 1999.
Citatione MLA (9a ed.)Stern, Scott. Do Scientists Pay to Be Scientistsn. National Bureau of Economic Research, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.