Cita APA

Mackee M. (1961). Universal Decimal Classification English Abridged edition 1961 (Photocopy) (3.). British standards Institution.

Chicago Edition Citation

Mackee M. Universal Decimal Classification English Abridged Edition 1961 (Photocopy). 3. London: British standards Institution, 1961.

Cita MLA

Mackee M. Universal Decimal Classification English Abridged Edition 1961 (Photocopy). 3. British standards Institution, 1961.