Center For Science And Environment. (2013). Excreta Matters. Center For Science And Environment.
Cita Chicago Style (17a ed.)Center For Science And Environment. Excreta Matters. Delhi: Center For Science And Environment, 2013.
Cita MLA (9a ed.)Center For Science And Environment. Excreta Matters. Center For Science And Environment, 2013.
Precaución: Estas citas no son 100% exactas.