Martorell, Luis F. “GLYPTOTERMES LIBERATUS (SNYDER)—(ISOPTERA: KAWTERMITIDAE): A NEW TERMITE RECORD FOR PUERTO RICO”. The Journal of Agriculture of the University of Puerto Rico, vol. 57, no. 4, Oct. 1973, pp. 355-6, doi:10.46429/jaupr.v57i4.10737.