Gaya APA
Ashley, A.. (2010).
Oxford Handbook of Commercial Correspondence : A. Ashley .
New York:
Oxford University press.
Gaya Chicago
Ashley, A..
Oxford Handbook of Commercial Correspondence : A. Ashley.
New York:
Oxford University press,
2010.
Buku.
Gaya MLA
Ashley, A..
Oxford Handbook of Commercial Correspondence : A. Ashley.
New York:
Oxford University press,
2010.
Buku.
Gaya Turabian
Ashley, A..
Oxford Handbook of Commercial Correspondence : A. Ashley.
New York:
Oxford University press,
2010.
Buku.