Preservation and conservation of library documents [Texto fotocopiado] : a UNESCO-IFLA-ICA enquiry into the current state of the world's patrimony / by D. W. G. Clements ; [ed. lit.] General Information Programme and UNISIST
. - Paris : UNESCO, 1987
. - [4], 32, [7] p. 30 cm
Fundos bibliográficos - Estado de conservação - Inquéritos /
025.8 / 303.4(469) /
C.S6.07.11.4/Cx212
