APA

O´Donohue J., . (2004). Beauty. New York: HarperCollins.

Chicago

O´Donohue John, . 2004. Beauty. New York: HarperCollins.

Harvard

O´Donohue J., . (2004). Beauty. New York: HarperCollins.

MLA

O´Donohue John, . Beauty. New York: HarperCollins. 2004.