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Dyfyniad Arddull ChicagoAdams, Stephen R. Information Sources in Patents. 3rd completely rev. ed. Berlin ; Boston: De Gruyter Saur, 2012.
Dyfyniad MLAAdams, Stephen R. Information Sources in Patents. 3rd completely rev. ed. De Gruyter Saur, 2012.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.