Universal Decimal Classification English Abridged edition 1961
B S I
Universal Decimal Classification English Abridged edition 1961 by B.S.I - 3 - London British standards Institution 1961
photocopy
025.43 UDC;9
Universal Decimal Classification English Abridged edition 1961 by B.S.I - 3 - London British standards Institution 1961
photocopy
025.43 UDC;9