Cita APA (7a ed.)
Nweke, F., Ugwu, B., Asadu, C., & Ay, P. (1991). Production costs in the yambased cropping systems of southeastern Nigeria: RCMP research monograph, No. 6.
Cita Chicago Style (17a ed.)
Nweke, F., B. Ugwu, C. Asadu, y P. Ay. Production Costs in the Yambased Cropping Systems of Southeastern Nigeria: RCMP Research Monograph, No. 6. 1991.
Cita MLA (9a ed.)
Nweke, F., et al. Production Costs in the Yambased Cropping Systems of Southeastern Nigeria: RCMP Research Monograph, No. 6. 1991.
Precaución: Estas citas no son 100% exactas.