Mack Ben. (2007). Think Two Products Ahead: Secrets the Big Advertising Agencies Don't Want You to Know and How to Use Them for Bigger Profits. Canada: John Wiley.
শিকাগো স্টাইলে সাইটেশনMack Ben. Think Two Products Ahead: Secrets the Big Advertising Agencies Don't Want You to Know and How to Use Them for Bigger Profits. Canada: John Wiley, 2007.
এমএলএ সাইটেশনMack Ben. Think Two Products Ahead: Secrets the Big Advertising Agencies Don't Want You to Know and How to Use Them for Bigger Profits. Canada: John Wiley, 2007.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.