Krishnanand Herla, M. and Baradol, A.K. 1997. Comparative Study of Physics Schedules in the Seventh Edition of Colon Classification and the Twentieth Edition of Dewey Decimal Classification. Journal of Information and Knowledge. 34, 3 (Jan. 1997), 115–147. DOI:https://doi.org/10.17821/srels/1997/v34i3/48751.