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871
A study of the retting enhancement capacity of Clostridium felsineum carbone and tombolate [microform]
Published 1981Visual Material -
872
Soil resources and rice demand of Metropolitan Manila, its surrounding cities and municipalities [microform]
Published 1981Visual Material -
873
Survival of Pseudomonas solanacearum E. F. Smith in the rhizosphere of some weed and economic plant specied [microform]
Published 1981Visual Material -
874
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875
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876
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877
Productivity and returns to inputs of fishpan aquaculture in the Philippines [microform]
Published 1981Visual Material -
878
Shifts in weed and weed seed population under different multiple cropping patterns [microform]
Published 1981Visual Material -
879
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880
Attitudes of parents over tv viewing habits of their children [microform]
Published 1981Visual Material