-
2601
Relation between chemical constituents of rice leaves and resistance to the blast disease [microform].
Published 1977Visual Material -
2602
-
2603
-
2604
-
2605
-
2606
-
2607
-
2608
Politics in Tuguegarao, Cagayan a study in decision-making [microform].
Published 1977Visual Material -
2609
Tolerance of three isolates of Helminthosporium maydis Nisikado and Miyake to four fungicides [microform].
Published 1977Visual Material -
2610
Bacterial soft rot of papaya (Carica papaya L.) in the Philippines [microform].
Published 1977Visual Material