Cita APA (7a ed.)

Bassey, M. W., & Schmidt, O. (1989). Abrasive-disk dehullers in Africa from research to dissemination (1st edition.). IDRC.

Cita Chicago Style (17a ed.)

Bassey, Michael W., y O.G Schmidt. Abrasive-disk Dehullers in Africa from Research to Dissemination. 1st edition. Ottawa: IDRC, 1989.

Cita MLA (8a ed.)

Bassey, Michael W., y O.G Schmidt. Abrasive-disk Dehullers in Africa from Research to Dissemination. 1st edition. IDRC, 1989.