Cita APA (7th ed.)

(2009). Clean, Green and Blue: Singapore's Journey Towards Environmental and Water Sustainability. [s.n.].

Cita Chicago (17th ed.)

Clean, Green and Blue: Singapore's Journey Towards Environmental and Water Sustainability. [S.l.]: [s.n.], 2009.

Cita MLA (9th ed.)

Clean, Green and Blue: Singapore's Journey Towards Environmental and Water Sustainability. [s.n.], 2009.