Gaya APA
College Keyboarding : Lessons 1-20. ([s.a.]).
[s.l.]:
[s.n.].
Gaya Chicago
College Keyboarding : Lessons 1-20.
.
[s.l.]:
[s.n.],
[s.a.].
Text.
Gaya MLA
College Keyboarding : Lessons 1-20.
.
[s.l.]:
[s.n.],
[s.a.].
Text.
Gaya Turabian
College Keyboarding : Lessons 1-20.
[s.l.]:
[s.n.],
[s.a.].
Print.