Search Results       Your search for [subject]Water hyacinth -- Philippines -- Laguna de Bay returned 1 record.           Detection and monitoring of water hyacinth (eichhornia crassipes) infestation in Laguna de Bay through multispectral digital analysis of LANDSAT imageries. Quezon City: Natural Resources Management Center, Ministry of Natural Resources, 1978. Subject: Water hyacinth -- Philippines -- Laguna de Bay; Multispectral photography.          Add to Book Cart Relevance: 33.78%