Gaya APA
Soeroto, A.. (s.a).
Abraham lincoln penentang perbudakan .
s.l:
Djambatan.
Gaya Chicago
Soeroto, A..
Abraham lincoln penentang perbudakan.
s.l:
Djambatan,
s.a.
Text.
Gaya MLA
Soeroto, A..
Abraham lincoln penentang perbudakan.
s.l:
Djambatan,
s.a.
Text.
Gaya Turabian
Soeroto, A..
Abraham lincoln penentang perbudakan.
s.l:
Djambatan,
s.a.
Print.