00523nam a22001937a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093110005100102245006500153260003800218300000800256490002200264650002100286830002200307CHAP20220329134807.0971013s1972            r     00010     d  a26033  a27005  a31106  cCHAP  aInternational Organization for Standardization  aNumbering of divisions and subdivisions in written documents  a(s.l.) :bThe Organization,c1972  a2 p  aISO 2145-1972 (E)14aDocumentación.0 aISO 2145-1972 (E)