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Friedrich Engel, co-fundador do socialismo científico. - Lisboa : Avante, 2020. - 33, [2] p. ; 19 cm. - (Cadernos O militante ; 21)
Persistent link: http://id.bnportugal.gov.pt/bib/bibnacional/2058887
about this subject:
141.82"18"(042) (filosofia, psicologia, ...) 
from this publisher : Avante
from this series : Cadernos O militante
