Gaya APA
Kench, A. B.. (1972).
The Language of English Business Letters .
London:
Macmillan Education.
Gaya Chicago
Kench, A. B..
The Language of English Business Letters.
London:
Macmillan Education,
1972.
Text.
Gaya MLA
Kench, A. B..
The Language of English Business Letters.
London:
Macmillan Education,
1972.
Text.
Gaya Turabian
Kench, A. B..
The Language of English Business Letters.
London:
Macmillan Education,
1972.
Print.