National index of agril. field experiments:1954-59
Inst. of Agril. Res. Stat.
National index of agril. field experiments:1954-59 - New Delhi ICAR 1965 - 510
R630.954 / I-5N
National index of agril. field experiments:1954-59 - New Delhi ICAR 1965 - 510
R630.954 / I-5N