Cita APA (7th ed.)
ebrary, Inc. (2004). Animal care and management at the National zoo: Interim report. National Academic Press.
Cita Chicago (17th ed.)
ebrary, Inc. Animal Care and Management at the National Zoo: Interim Report. Washington, D.C.: National Academic Press, 2004.
Cita MLA (9th ed.)
ebrary, Inc. Animal Care and Management at the National Zoo: Interim Report. National Academic Press, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.