SZABO, Attila T. “Regional Variability in Phaseolus Vulgaris L. (II.) Seed Character Frequencies in Transylvania”. Notulae Botanicae Horti Agrobotanici Cluj-Napoca 15, no. 1 (August 5, 1985): 21-28. Accessed September 30, 2020. https://www.notulaebotanicae.ro/index.php/nbha/article/view/202.