Gaya APA
Letter Writing and Composition. (1974).
[s.l.]:
[s.n.].
Gaya Chicago
Letter Writing and Composition.
.
[s.l.]:
[s.n.],
1974.
Text.
Gaya MLA
Letter Writing and Composition.
.
[s.l.]:
[s.n.],
1974.
Text.
Gaya Turabian
Letter Writing and Composition.
[s.l.]:
[s.n.],
1974.
Print.