Gaya APA
New english 900. (1978).
London:
Collier MacMillan.
Gaya Chicago
New english 900.
.
London:
Collier MacMillan,
1978.
Text.
Gaya MLA
New english 900.
.
London:
Collier MacMillan,
1978.
Text.
Gaya Turabian
New english 900.
London:
Collier MacMillan,
1978.
Print.