prepared by Françoise Hildesheimer.General Information Programme and UNISIST, United Nations Educational, Scientific, and Cultural Organization1983.<UA71-D4>
prepared by Frank B. Evans and Eric Ketelaar.General Information Programme and UNISIST, United Nations Educational, Scientific, and Cultural Organization1983.<UA71-D3>
prepared at the request of the IFLA UBCIM Programme by Anthony G. CurwenGeneral Information Programme and UNISIST : United Nations Educational, Scientific and Cultural Organization1990
by France Fontaine and Paulette BernhardGeneral Information Programme and UNISIST, United Nations Educational, Scientific and Cultural Organization1989