Gaya APA
Main problems in american history. (1969).
[S.I]:
Ilinois.
Gaya Chicago
Main problems in american history.
cet.4.
[S.I]:
Ilinois,
1969.
.
Gaya MLA
Main problems in american history.
cet.4.
[S.I]:
Ilinois,
1969.
.
Gaya Turabian
Main problems in american history.
[S.I]:
Ilinois,
1969.
.