00849cam a22002291 4500 agr40000432 DLC 20260227110959.0 880719s1939 ua a b f000 0 eng c agr40000432 (OCoLC)18236274 U.S. Dept. of agr. Library CU CU DLC premarc S341 .A4 no. 236 El-Helaly, Abbas Fathi. Further studies on the control of bean rust with some reference to the prevention of chocolate spot of beans, by A.F. El-Helaly ... Cairo, Government Press, 1939. 2 p. l., 24 p. XV tab. 27 cm. Egypt. Wizārat al-Zirāʻah. Technical and Scientific Service (Plant Pathological Section). Bulletin no. 236 "References": p. 24. Beans Diseases and pests. 10046 10046