Cita APA (7th ed.)
Canadian Nature Federation. (2003). Nature matters. Canadian Nature Federation.
Cita Chicago (17th ed.)
Canadian Nature Federation. Nature Matters. Ottawa: Canadian Nature Federation, 2003.
Cita MLA (9th ed.)
Canadian Nature Federation. Nature Matters. Canadian Nature Federation, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.