Dyfyniad APA

Cooper, G., & Henderson, B. (2000). Leap of faith: An astronaut's journey into the unknown. HarperCollins Publishers.

Dyfyniad Arddull Chicago

Cooper, Gordon, and Bruce Henderson. Leap of Faith: An Astronaut's Journey into the Unknown. New York: HarperCollins Publishers, 2000.

Dyfyniad MLA

Cooper, Gordon, and Bruce Henderson. Leap of Faith: An Astronaut's Journey into the Unknown. HarperCollins Publishers, 2000.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.