Shorter,Laurence. The optimist: One man's search for the brighter side of life. Canongate.
Chicago (17e ed.) BronvermeldingShorter,Laurence. The Optimist: One Man's Search for the Brighter Side of Life. Canongate.
MLA (8e ed.) BronvermeldingShorter,Laurence. The Optimist: One Man's Search for the Brighter Side of Life. Canongate.
Let op: Deze citaties zijn niet altijd 100% accuraat.