Sehgal, R. (1993). Number building in Dewey Decimal Classification, Universal Decimal Classification, Colon Classification (1st.). Ess Ess.
Citación estilo ChicagoSehgal, R.L. Number Building in Dewey Decimal Classification, Universal Decimal Classification, Colon Classification. 1st. New Delhi: Ess Ess, 1993.
Cita MLASehgal, R.L. Number Building in Dewey Decimal Classification, Universal Decimal Classification, Colon Classification. 1st. Ess Ess, 1993.
Warning: These citations may not always be 100% accurate.