Cita APA (7th ed.)

Quah, S. R. (1987). Friends in blue: The police and the public in Singapore. Oxford University Press.

Cita Chicago (17th ed.)

Quah, Stella R. Friends in Blue: The Police and the Public in Singapore. Singapore: Oxford University Press, 1987.

Cita MLA (9th ed.)

Quah, Stella R. Friends in Blue: The Police and the Public in Singapore. Oxford University Press, 1987.