Penrose, E. T. (1951). The economics of the international patent system. Johns Hopkins Press.
Citación estilo ChicagoPenrose, Edith Tilton. The Economics of the International Patent System. Baltimore: Johns Hopkins Press, 1951.
Cita MLAPenrose, Edith Tilton. The Economics of the International Patent System. Johns Hopkins Press, 1951.
Warning: These citations may not always be 100% accurate.