TY - BOOK ID - 1156850 TI - Legal validity PY - 1972 SN - 9024712157 9789024712151 PB - The Hague Nijhoff DB - UniCat KW - Legal theory and methods. Philosophy of law KW - Effectiveness and validity of law KW - Effectiveness and validity of law. KW - Validity and effectiveness of law KW - International law KW - Jurisprudence UR - https://www.unicat.be/uniCat?func=search&query=sysid:1156850 AB - ER -