Gaya APA

Easterbrook, Gregg. (2003). The progress paradox : how life gets better while people feel worse . America: Random House.

Gaya Chicago

Easterbrook, Gregg. The progress paradox : how life gets better while people feel worse. America: Random House, 2003. Text.

Gaya MLA

Easterbrook, Gregg. The progress paradox : how life gets better while people feel worse. America: Random House, 2003. Text.

Gaya Turabian

Easterbrook, Gregg. The progress paradox : how life gets better while people feel worse. America: Random House, 2003. Print.