Cita APA (7a ed.)

Walker, D. H. T., & Hampson, K. (2003). Procurement strategies: A relationship-based approach. Blackwell Science.

Cita Chicago Style (17a ed.)

Walker, Derek H. T., y Keith Hampson. Procurement Strategies: A Relationship-based Approach. Oxford, UK ; Malden, Mass.: Blackwell Science, 2003.

Cita MLA (9a ed.)

Walker, Derek H. T., y Keith Hampson. Procurement Strategies: A Relationship-based Approach. Blackwell Science, 2003.