Gaya APA
Hawkins, Del I, Tull, Donald S. (1994).
Essentials of marketing research .
New York:
Macmillan Publ..
Gaya Chicago
Hawkins, Del I, Tull, Donald S.
Essentials of marketing research.
New York:
Macmillan Publ.,
1994.
Buku.
Gaya MLA
Hawkins, Del I, Tull, Donald S.
Essentials of marketing research.
New York:
Macmillan Publ.,
1994.
Buku.
Gaya Turabian
Hawkins, Del I, Tull, Donald S.
Essentials of marketing research.
New York:
Macmillan Publ.,
1994.
Buku.