Abbey, E. The serpents of paradise: Edward Abbey. The West.(1979).
Cita Chicago (17th ed.)Abbey, Edward. "The Serpents of Paradise: Edward Abbey." The West.(1979) .
Cita MLA (8th ed.)Abbey, Edward. "The Serpents of Paradise: Edward Abbey." The West.(1979), .
Atenció: Aquestes cites poden no estar 100% correctes.