British Standards Institution. (1968). BS1000[618]: 1968 UDC gynaecology obsterics. BSI.
Chicago Edition CitationBritish Standards Institution. BS1000[618]: 1968 UDC Gynaecology Obsterics. London: BSI, 1968.
Cita MLABritish Standards Institution. BS1000[618]: 1968 UDC Gynaecology Obsterics. BSI, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.