Gaya APA
Lado, Robert. (1972).
Lado English (Edisi IV).
U.S.A:
Regents Publishing Company, Inc.
Gaya Chicago
Lado, Robert.
Lado English.
Edisi IV
U.S.A:
Regents Publishing Company, Inc,
1972.
Text.
Gaya MLA
Lado, Robert.
Lado English.
Edisi IV
U.S.A:
Regents Publishing Company, Inc,
1972.
Text.
Gaya Turabian
Lado, Robert.
Lado English.
Edisi IV
U.S.A:
Regents Publishing Company, Inc,
1972.
Print.