APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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