Cita APA (7a ed.)

Ng, C. W. (1999). The establishment and early development of police system in Hong Kong.

Cita Chicago Style (17a ed.)

Ng, Chi Wa. The Establishment and Early Development of Police System in Hong Kong. 1999.

Cita MLA (8a ed.)

Ng, Chi Wa. The Establishment and Early Development of Police System in Hong Kong. 1999.