Cooper, G., & Henderson, B. (2000). Leap of faith: An astronaut's journey into the unknown. HarperCollins Publishers.
Citazione stile Chigago Style (17a edizione)Cooper, Gordon, e Bruce Henderson. Leap of Faith: An Astronaut's Journey into the Unknown. New York: HarperCollins Publishers, 2000.
Citatione MLA (9a ed.)Cooper, Gordon, e Bruce Henderson. Leap of Faith: An Astronaut's Journey into the Unknown. HarperCollins Publishers, 2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.