Gaya APA
Let's write English. (1980).
New York:
American Book Company.
Gaya Chicago
Let's write English.
.
New York:
American Book Company,
1980.
.
Gaya MLA
Let's write English.
.
New York:
American Book Company,
1980.
.
Gaya Turabian
Let's write English.
New York:
American Book Company,
1980.
.