Gaya APA
McDaniel, C., Gates, R. (2004).
Marketing research essentials : Carl McDaniel, Roger Gates (ed. 4).
San Francisco:
John Wiley \r Sons.
Gaya MLA
McDaniel, Carl., Gates, Roger..
"Marketing research essentials : Carl McDaniel, Roger Gates".
ed. 4
San Francisco:
John Wiley \r Sons,
2004.
Buku.