Competitive effects of Cyperus rotundus L., Echinochloa colonum (L.) Link and trianthema portulacastrum L. on cotton [microform]. - Guantes, Martin M. 1941- (Quezon City Photoduplication Service, University of the Philippines Library, 1977)
Microfilmed with 19 other titles.
Thesis (M.S.)--University of the Philippines, Los Banos.
Originally published in [College, Laguna] 1974.
Keywords: Cotton; Weed control