. . "Enseignement post-universitaire." . . "An economic perspective on the evolution of graduate education" . . . . . . . . . . "An economic perspective on the evolution of graduate education : A technical report presented to the national board on graduate education, Washington, D. C" . . "An economic perspective on the evolution of graduate education : a techinical report presented to the national board on graduate education" . . "An economic perspective on the evolution of graduate education : a technical report presented to the National Board on Graduate Education" . . . . . . . . . "Universités États-Unis Études des 2e et 3e cycles." . . "Enseignement supérieur Aspect économique États-Unis." . . "Éducation Aspect économique." . .