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1
Effects of the different tillage techniques on the efficiency of weed control and nitrogen uptake in transplanted rice [microform].
Опубликовано 1980Visual Material -
2
The Filipino graduates of the Rice Production Training Program a follow-up study [microform]
Опубликовано 1977Visual Material -
3
The Filipino graduates of the Rice Production Training Program a follow-up study
Опубликовано 1977Visual Material