Cita APA (7a ed.)

O'Bryan, P. (2007). Your portable empire: How to make money anywhere while doing what you love (1st edition.). John Wiley & Sons, Inc.

Cita Chicago Style (17a ed.)

O'Bryan, Pat. Your Portable Empire: How to Make Money Anywhere While Doing What You Love. 1st edition. Hoboken, N.J.: John Wiley & Sons, Inc, 2007.

Cita MLA (9a ed.)

O'Bryan, Pat. Your Portable Empire: How to Make Money Anywhere While Doing What You Love. 1st edition. John Wiley & Sons, Inc, 2007.