Gaya APA
Mastering American english. (1956).
tempaterbit:
penerbit.
Gaya Chicago
Mastering American english.
Edisi.
tempaterbit:
penerbit,
1956.
Text.
Gaya MLA
Mastering American english.
Edisi.
tempaterbit:
penerbit,
1956.
Text.
Gaya Turabian
Mastering American english.
tempaterbit:
penerbit,
1956.
Print.