TY - BOOK ED - International Union of Geological Sciences - (1989: Washington D.C, - U.S.A.) TI - Minutes: XXXIIIrd Executive committee meeting - Jully 12 and 17, 1989 - Washington, D.C., U.S.A U1 - 550 DDC 23 PY - 1989/// CY - Norway PB - Geological Survey KW - International union of geological sciences - Committee Minutes - 1989, U.S.A ER -