Powell, R. (2009). Singapore houses. Tuttle Pub.
Cita Chicago (17th ed.)Powell, Robert. Singapore Houses. North Clarendon, Vt: Tuttle Pub, 2009.
Cita MLA (9th ed.)Powell, Robert. Singapore Houses. Tuttle Pub, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.