Cita APA (7a ed.)

Mrope, N., & Mayaga, E. (2005). Understanding international purchasing. Mzumbe Book Project.

Cita Chicago Style (17a ed.)

Mrope, Noel, y Emmanuel Mayaga. Understanding International Purchasing. Morogoro: Mzumbe Book Project, 2005.

Cita MLA (9a ed.)

Mrope, Noel, y Emmanuel Mayaga. Understanding International Purchasing. Mzumbe Book Project, 2005.