Valdivia, R., Vidal, V. A., & Sierra, M. (2006). Maize progenitor selection to obtain hybrid seeds by small farmers.
استشهاد بنمط شيكاغوValdivia, Roberto, Víctor A. Vidal, و Mauro Sierra. Maize Progenitor Selection to Obtain Hybrid Seeds By Small Farmers. 2006.
MLA استشهادValdivia, Roberto, Víctor A. Vidal, و Mauro Sierra. Maize Progenitor Selection to Obtain Hybrid Seeds By Small Farmers. 2006.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.