Gaya APA
Marcella, F.
(1972).
MODERN ENGLISH ; A PRACTICAL REFERENCE GUIDE
.
yongyakarta:
PT Bulan Bintang.
Gaya MLA
Marcella, Frank.
"MODERN ENGLISH ; A PRACTICAL REFERENCE GUIDE".
yongyakarta:
PT Bulan Bintang,
1972.
.