Gaya APA
HUGHES, H. (1968).
Business letter writer .
London:
Ward Lock.
Gaya Chicago
HUGHES, H.
Business letter writer.
London:
Ward Lock,
1968.
Monograf.
Gaya MLA
HUGHES, H.
Business letter writer.
London:
Ward Lock,
1968.
Monograf.
Gaya Turabian
HUGHES, H.
Business letter writer.
London:
Ward Lock,
1968.
Monograf.