Gaya APA
Lado, Robert. (1971).
Lado English Series .
U.S.A:
Regents Publishing Company, Inc.
Gaya Chicago
Lado, Robert.
Lado English Series.
U.S.A:
Regents Publishing Company, Inc,
1971.
Text.
Gaya MLA
Lado, Robert.
Lado English Series.
U.S.A:
Regents Publishing Company, Inc,
1971.
Text.
Gaya Turabian
Lado, Robert.
Lado English Series.
U.S.A:
Regents Publishing Company, Inc,
1971.
Print.