Ramos-Santana, R. and Rodríguez-Arroyo, J.E. 1991. Persistence of Hemarthria and Cynodon cultivars in mob grazing in the humid tropical region of Puerto Rico. The Journal of Agriculture of the University of Puerto Rico. 75, 2 (Apr. 1991), 147–152. DOI:https://doi.org/10.46429/jaupr.v75i2.3577.