International Conference on Science Abstracting (1949 : Paris). (1951). Final report. UNESCO.
Dyfyniad Arddull ChicagoInternational Conference on Science Abstracting (1949 : Paris). Final Report. [Paris]: UNESCO, 1951.
Dyfyniad MLAInternational Conference on Science Abstracting (1949 : Paris). Final Report. UNESCO, 1951.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.