National index of agril. field experiments : West Bengal (1948-53)
Inst. of Agril. Res. Stat.
National index of agril. field experiments : West Bengal (1948-53) - New Delhi ICAR 1962 - 226
R630.954 / I-5N
National index of agril. field experiments : West Bengal (1948-53) - New Delhi ICAR 1962 - 226
R630.954 / I-5N