Biological constraints to high yields on some rice farms in Nueva Ecija, Philippines [microform] - Abilay, Wenceslao P. (Quezon City Photoduplication Service. University of the Philippines Library, 1981)
Microfilmed with 17 other titles.
Thesis (M.S.)
Originally published in 1978.
Keywords: Rice -- Philippines -- Nueva Ecija; Rice research -- Philippines -- Nueva Ecija