National index of agril. field experiments : U.P. (1954-59)
Inst. of Agril. Res. Stat.
National index of agril. field experiments : U.P. (1954-59) - New Delhi ICAR 1965 - 1724
R630.954 / I-5N
National index of agril. field experiments : U.P. (1954-59) - New Delhi ICAR 1965 - 1724
R630.954 / I-5N