Segall, R.H. and López-Matos, L. 1956. Control of Damping-off of Tobacco in Seedbeds by the Use of Gaseous Soil Fumigants. The Journal of Agriculture of the University of Puerto Rico. 40, 1 (Jan. 1956), 62–66. DOI:https://doi.org/10.46429/jaupr.v40i1.12661.