Gaya APA
ISMAIL, Ahmed. (1999).
Catering sales and convention service .
New York:
Delmar.
Gaya Chicago
ISMAIL, Ahmed.
Catering sales and convention service.
New York:
Delmar,
1999.
Monograf.
Gaya MLA
ISMAIL, Ahmed.
Catering sales and convention service.
New York:
Delmar,
1999.
Monograf.
Gaya Turabian
ISMAIL, Ahmed.
Catering sales and convention service.
New York:
Delmar,
1999.
Monograf.