Ingress, internal spread and some factors affecting pathogenicity of Diplodia tubericola (E. & E.) Taub. in sweet potato - Vicha Sardsud 1949- (1979)
Appendices: leaves 84-106.
Mimeographed.
Thesis (M.S.)--University of the Philippines, Los Banos.
Vita.
Keywords: Black rot; Sweet potatoes -- Diseases and pests. -- Philippines -- Los Banos, Laguna