Gaya APA
Kruse, Benedict, Kruse, Bettijune. (1982).
English for The Travel Industries .
Singapore:
McGraw-Hill.
Gaya Chicago
Kruse, Benedict, Kruse, Bettijune.
English for The Travel Industries.
Singapore:
McGraw-Hill,
1982.
Buku Teks.
Gaya MLA
Kruse, Benedict, Kruse, Bettijune.
English for The Travel Industries.
Singapore:
McGraw-Hill,
1982.
Buku Teks.
Gaya Turabian
Kruse, Benedict, Kruse, Bettijune.
English for The Travel Industries.
Singapore:
McGraw-Hill,
1982.
Buku Teks.