Cita APA (7th ed.)
ebrary, Inc, & Donald, P. F. (2010). Facing extinction: The world's rarest birds and the race to save them. T & AD Poyser.
Cita Chicago (17th ed.)
ebrary, Inc, i Paul F. Donald. Facing Extinction: The World's Rarest Birds and the Race to Save Them. London: T & AD Poyser, 2010.
Cita MLA (9th ed.)
ebrary, Inc, i Paul F. Donald. Facing Extinction: The World's Rarest Birds and the Race to Save Them. T & AD Poyser, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.