Gaya APA
Lado english series. (1972).
tempaterbit:
penerbit.
Gaya Chicago
Lado english series.
Edisi.
tempaterbit:
penerbit,
1972.
Text.
Gaya MLA
Lado english series.
Edisi.
tempaterbit:
penerbit,
1972.
Text.
Gaya Turabian
Lado english series.
tempaterbit:
penerbit,
1972.
Print.