Gaya APA
Lado, Robert. (1975).
Lado English Series Workbook 6 .
Inggris:
Regents Publishing.
Gaya Chicago
Lado, Robert.
Lado English Series Workbook 6.
Inggris:
Regents Publishing,
1975.
Text.
Gaya MLA
Lado, Robert.
Lado English Series Workbook 6.
Inggris:
Regents Publishing,
1975.
Text.
Gaya Turabian
Lado, Robert.
Lado English Series Workbook 6.
Inggris:
Regents Publishing,
1975.
Print.