TY - BOOK ID - 133380077 TI - The nature and sources of the law AU - Gray, John Chipman AU - Gray, Roland PY - 1963 PB - Boston : Beacon Press, DB - UniCat KW - Law KW - Jurisprudence KW - Droit UR - https://www.unicat.be/uniCat?func=search&query=sysid:133380077 AB - ER -