Gaya APA
Fletcher, A, D., Bowers, T, A. (1987).
Fundamentals of advertising research (3rd edition).
California:
Wadsworth Publishing Co..
Gaya MLA
Fletcher, Alan, D.., Bowers, Thomas, A..
"Fundamentals of advertising research".
3rd edition
California:
Wadsworth Publishing Co.,
1987.
BUKU.