Cita APA (7a ed.)
Otoo, J., Okoli, O., & Ilona, P. (2001). Improved production of seed yam. International Institute of Tropical Agriculture.
Cita Chicago Style (17a ed.)
Otoo, J.A, O.O Okoli, y Paul Ilona. Improved Production of Seed Yam. International Institute of Tropical Agriculture, 2001.
Cita MLA (9a ed.)
Otoo, J.A, et al. Improved Production of Seed Yam. International Institute of Tropical Agriculture, 2001.
Precaución: Estas citas no son 100% exactas.