Gaya APA
INC, E, L, S.
(1970).
A Basic Course English 900 (3)
(
1)
.
New York:
The Macmillan Company.
Gaya MLA
INC, English, Language, Services,.
"A Basic Course English 900 (3)".
1
New York:
The Macmillan Company,
1970.
Buku Teks.