Gaya APA
GRAY, S Loretta. (1999).
Mastering idiomatic english .
U.S.A:
National Textbook Company.
Gaya Chicago
GRAY, S Loretta.
Mastering idiomatic english.
U.S.A:
National Textbook Company,
1999.
.
Gaya MLA
GRAY, S Loretta.
Mastering idiomatic english.
U.S.A:
National Textbook Company,
1999.
.
Gaya Turabian
GRAY, S Loretta.
Mastering idiomatic english.
U.S.A:
National Textbook Company,
1999.
.