APA aipamena

British Standards Institution. (1972). BS1000[9]: 1972 UDC geography,. BSI.

Chicago Style aipamena

British Standards Institution. BS1000[9]: 1972 UDC Geography,. London: BSI, 1972.

MLA aipamena

British Standards Institution. BS1000[9]: 1972 UDC Geography,. BSI, 1972.