The foreign relations power in United States federalism: the history and practice of national pre-emption
Autores:Allen Sultan
Localización:American journal of comparative law, ISSN 0002-919X, Nº. Extra 1, 1986 (Ejemplar dedicado a: Law in the U.S.A. faces social and scientific change / coord. por John N. Hazard, Wenceslas J. Wagner), págs. 363-382
