Gaya APA
A Practical english grammar. (1986).
New York:
[s.n.].
Gaya Chicago
A Practical english grammar.
.
New York:
[s.n.],
1986.
Text.
Gaya MLA
A Practical english grammar.
.
New York:
[s.n.],
1986.
Text.
Gaya Turabian
A Practical english grammar.
New York:
[s.n.],
1986.
Print.