Inyang, E. (2011). Silent voices. Langaa RPCIG.
Cita Chicago (17th ed.)Inyang, Ekpe. Silent Voices. Bamenda [Cameroon]: Langaa RPCIG, 2011.
Cita MLA (9th ed.)Inyang, Ekpe. Silent Voices. Langaa RPCIG, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.