Gaya APA

Mack, B. (c2007). Think two products ahead: secrets the big advertising agencies don't want you to know and how to use them for bigger profits . nju: John Wiley & Sons.

Gaya MLA

Mack, Benjamin. "Think two products ahead: secrets the big advertising agencies don't want you to know and how to use them for bigger profits". nju: John Wiley & Sons, c2007. Buku.