Plant diseases problems: proceedings
CHAUDHURY, S. P. Ray
Plant diseases problems: proceedings - New Delhi 1970 - 915p
PLANT DISEASES -- CONGRESSES
PLANT DISEASES -- CONGRESSES
581.2 I-3P
Plant diseases problems: proceedings - New Delhi 1970 - 915p
PLANT DISEASES -- CONGRESSES
PLANT DISEASES -- CONGRESSES
581.2 I-3P