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Your search for [subject]DDT (Insecticide)--Environmental aspects--Congresses returned 2 records. |
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Proceedings of the Philippine Association for the Advancement of Science, 1970.
by Campos, Paulo C.; Manila: The Association, 1970.
Subject: DDT (Insecticide)--Environmental aspects--Congresses; DDT (Insecticide)--Environmental aspects--Philippines --Congresses; Technical education - Philippines - Congresses.
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Proceedings of the Philippine Association for the Advancement of Science 1970.
by Campos, Paulo C.; Manila: The Philippine Association for the Advancement of Science, 1970.
Subject: DDT (Insecticide) -- Environmental aspects -- Congresses.
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