Gaya APA
Workbook lado english series. (1973).
tempaterbit:
penerbit.
Gaya Chicago
Workbook lado english series.
Edisi.
tempaterbit:
penerbit,
1973.
Text.
Gaya MLA
Workbook lado english series.
Edisi.
tempaterbit:
penerbit,
1973.
Text.
Gaya Turabian
Workbook lado english series.
tempaterbit:
penerbit,
1973.
Print.