Universal Decimal Classification English Abridged edition 1961 (Photocopy)
B S I
Universal Decimal Classification English Abridged edition 1961 (Photocopy) by B.S.I - 3 - London British standards Institution 1961
025.43 UDC;12
Universal Decimal Classification English Abridged edition 1961 (Photocopy) by B.S.I - 3 - London British standards Institution 1961
025.43 UDC;12