DescriptionDe-Proterozoikum.ogg English: Pronunciation recording of German noun "Proterozoikum", IPA: /pʁoteʁoˈt͡soːikʊm/. Male voice, recorded by native...
DescriptionDe-Proterozoikums.ogg English: Pronunciation recording of German noun inflection "Proterozoikums", IPA: /pʁoteʁoˈt͡soːikʊms/. Male voice, recorded...