APA
Hawk J., Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT) M. D. (., Arnel R. Hallauer International Symposium on Plant Breeding, Frey T. & Weldekidan T. (2003). Utilization of exotic germplasm for improving agronomic, disease resistance, and grain quality traits in corn belt maize. Mexico, DF (Mexico): CIMMYT.
Chicago
Hawk J.A, Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT) Mexico DF (Mexico), Arnel R. Hallauer International Symposium on Plant Breeding, Frey T.J and Weldekidan T. 2003. Utilization of exotic germplasm for improving agronomic, disease resistance, and grain quality traits in corn belt maize. Mexico, DF (Mexico): CIMMYT.
Harvard
Hawk J., Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT) M. D. (., Arnel R. Hallauer International Symposium on Plant Breeding, Frey T. and Weldekidan T. (2003). Utilization of exotic germplasm for improving agronomic, disease resistance, and grain quality traits in corn belt maize. Mexico, DF (Mexico): CIMMYT.
MLA
Hawk J.A, Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT) Mexico DF (Mexico), Arnel R. Hallauer International Symposium on Plant Breeding, Frey T.J and Weldekidan T. Utilization of exotic germplasm for improving agronomic, disease resistance, and grain quality traits in corn belt maize. Mexico, DF (Mexico): CIMMYT. 2003.