Lignende værker: Problemi na khigienata [Probl Khig] NLMUID: 7703299
- Problemi na geografii͡ata [Probl Geogr] NLMUID: 101086393
- Problemy Severa [Probl Sev] NLMUID: 0401154
- Problemy tuberkuleza [Probl Tuberk] NLMUID: 0414141
- Problemy ėndokrinologii [Probl Endokrinol (Mosk)] NLMUID: 0140673
- Problemy rodziny [Probl Rodziny] NLMUID: 19810180R
- Problemy kosmicheskoĭ biologii [Probl Kosm Biol] NLMUID: 0151523