Dobrowolski, Marian, author
Polish scholars : their contribution to world science
Polonia Publishing House, 1960
Buku Teks
Engels, F. E.
Socialism Utopian and scientific
Foreign Languages Publishing House, 1958
Buku Teks
Rose, Saul, author
Socialism in southern Asia
Octagon Books, 1959
Buku Teks
Hungary is building socialism
Budapest General Statistical ffice 1959
Buku Teks
Capitalism;Democracy;Socialism
Buku Teks
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