Citazione APA

Paulo Coelho. (1996). By the river Piedra I sat down and wept. Harper Collins.

Stile di citazione Chicago

Paulo Coelho. By the River Piedra I Sat Down and Wept. London: Harper Collins, 1996.

Citazione MLA

Paulo Coelho. By the River Piedra I Sat Down and Wept. Harper Collins, 1996.