2024-03-29T02:36:43Z
https://kpbc.umk.pl/oai-pmh-repository.xml
oai:kpbc.umk.pl:197121
2018-06-07T11:05:22Z
KujawskoPomorskaDigitalLibrary:EducationalMaterials KujawskoPomorskaDigitalLibrary KujawskoPomorskaDigitalLibrary:EducationalMaterials:Sociology KujawskoPomorskaDigitalLibrary:EducationalMaterials:Psychology