Cibes, H.R. and Gaztambide, S. 1978. Mineral-Deficiency Symptoms Displayed by Papaya Plants Grown under Controlled Conditions. The Journal of Agriculture of the University of Puerto Rico. 62, 4 (Oct. 1978), 413–423. DOI:https://doi.org/10.46429/jaupr.v62i4.10353.