González, O. et al. 1990. SYMPTOMATOLOGY AND CONTROL OF SCION DIEBACK IN GRAFT-PROPAGATED COCOA (THEOBROMA CACAO L.). The Journal of Agriculture of the University of Puerto Rico. 74, 2 (Apr. 1990), 207–208. DOI:https://doi.org/10.46429/jaupr.v74i2.6554.