González-Vélez, A. and Ruiz-Sifre, G. 2001. Yield, quality and foliar nutrient concentration of ’Orlando’ tangelo under different fertilizer regimes. The Journal of Agriculture of the University of Puerto Rico. 85, 1-2 (Apr. 2001), 41–47. DOI:https://doi.org/10.46429/jaupr.v85i1-2.3154.