Cita APA (7a ed.)

Collier, P. (1989). Contractual constraints on labour exchange in rural Kenya. International Labour Organization.

Cita Chicago Style (17a ed.)

Collier, Paul. Contractual Constraints on Labour Exchange in Rural Kenya. International Labour Organization, 1989.

Cita MLA (9a ed.)

Collier, Paul. Contractual Constraints on Labour Exchange in Rural Kenya. International Labour Organization, 1989.