Cita APA (7th ed.)
Allen, W. (2001). Green Phoenix: Restoring the tropical forests of Guanacaste, Costa Rica. Oxford University Press.
Cita Chicago (17th ed.)
Allen, William. Green Phoenix: Restoring the Tropical Forests of Guanacaste, Costa Rica. Oxford: Oxford University Press, 2001.
Cita MLA (9th ed.)
Allen, William. Green Phoenix: Restoring the Tropical Forests of Guanacaste, Costa Rica. Oxford University Press, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.