Cita APA (7a ed.)

Kelegama, S., Samararatne, P., & Knight-John, M. (1999). Productivity and labour cost in manufacturing industries: Sri Lanka. International Labour Organization.

Cita Chicago Style (17a ed.)

Kelegama, Saman, P. Samararatne, y Malathy Knight-John. Productivity and Labour Cost in Manufacturing Industries: Sri Lanka. International Labour Organization, 1999.

Cita MLA (9a ed.)

Kelegama, Saman, et al. Productivity and Labour Cost in Manufacturing Industries: Sri Lanka. International Labour Organization, 1999.