Gaya APA
New English 900. (1978).
New York:
Collier Macmillan International.
Gaya Chicago
New English 900.
.
New York:
Collier Macmillan International,
1978.
.
Gaya MLA
New English 900.
.
New York:
Collier Macmillan International,
1978.
.
Gaya Turabian
New English 900.
New York:
Collier Macmillan International,
1978.
.