APA aipamena

 Froehlich, R. J. (2006).  Investment megatrends.  John Wiley & Sons, Inc.

Chicago Style aipamena

 Froehlich, Robert J.  Investment Megatrends.  John Wiley & Sons, Inc, 2006.

MLA aipamena

 Froehlich, Robert J.  Investment Megatrends.  John Wiley & Sons, Inc, 2006.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.