Gaya APA
Learning english for Indonesia jilid 4a. (1977).
tempaterbit:
penerbit.
Gaya Chicago
Learning english for Indonesia jilid 4a.
Edisi.
tempaterbit:
penerbit,
1977.
Text.
Gaya MLA
Learning english for Indonesia jilid 4a.
Edisi.
tempaterbit:
penerbit,
1977.
Text.
Gaya Turabian
Learning english for Indonesia jilid 4a.
tempaterbit:
penerbit,
1977.
Print.