APA (7e ed.) Bronvermelding

Ettenberg, E. (2002). The next economy: Will you know where your customers are? McGraw-Hill.

Chicago (17e ed.) Bronvermelding

Ettenberg, Elliott. The Next Economy: Will You Know Where Your Customers Are? New York, NY: McGraw-Hill, 2002.

MLA (9e ed.) Bronvermelding

Ettenberg, Elliott. The Next Economy: Will You Know Where Your Customers Are? McGraw-Hill, 2002.