Gaya APA
Engels, Frederick. (1954).
Dialectics of Nature .
Moscow:
Foreign Language Publishing House, s.a..
Gaya Chicago
Engels, Frederick.
Dialectics of Nature.
Moscow:
Foreign Language Publishing House, s.a.,
1954.
Text.
Gaya MLA
Engels, Frederick.
Dialectics of Nature.
Moscow:
Foreign Language Publishing House, s.a.,
1954.
Text.
Gaya Turabian
Engels, Frederick.
Dialectics of Nature.
Moscow:
Foreign Language Publishing House, s.a.,
1954.
Print.