Gaya APA
Practical English Grammar Book One. ([s.a.]).
[s.l.]:
[s.n.].
Gaya Chicago
Practical English Grammar Book One.
; 1.
[s.l.]:
[s.n.],
[s.a.].
Text.
Gaya MLA
Practical English Grammar Book One.
; 1.
[s.l.]:
[s.n.],
[s.a.].
Text.
Gaya Turabian
Practical English Grammar Book One.
[s.l.]:
[s.n.],
[s.a.].
Print.