Gaya APA
Barzun, Jacques, Graff, Henry F.. (1977).
The Modern researcher .
Amerika Serikat:
.
Gaya Chicago
Barzun, Jacques, Graff, Henry F..
The Modern researcher.
Amerika Serikat:
,
1977.
Text.
Gaya MLA
Barzun, Jacques, Graff, Henry F..
The Modern researcher.
Amerika Serikat:
,
1977.
Text.
Gaya Turabian
Barzun, Jacques, Graff, Henry F..
The Modern researcher.
Amerika Serikat:
,
1977.
Print.