Cita APA (7a ed.)

Trine, R. W. What all the world's a-seeking or the vital law of true life, true greatness, power, and happiness.

Cita Chicago Style (17a ed.)

Trine, Ralph Waldo. What All the World's A-seeking or the Vital Law of True Life, True Greatness, Power, and Happiness. New York.

Cita MLA (8a ed.)

Trine, Ralph Waldo. What All the World's A-seeking or the Vital Law of True Life, True Greatness, Power, and Happiness.