APA (7th ed.) Citation

Coelho, P., & Clarke, A. R. (2014). By the river Piedra I sat down and wept. Harper.

Chicago Style (17th ed.) Citation

Coelho, Paulo, and Alan R. Clarke. By the River Piedra I Sat Down and Wept. London, England: Harper, 2014.

MLA (9th ed.) Citation

Coelho, Paulo, and Alan R. Clarke. By the River Piedra I Sat Down and Wept. Harper, 2014.