Rare and endemic trees of Puerto Rico and the Virgin IslandsUnited States Department of Agriculture, Forest Service : For sale by the Superintendant of Documents, United States Government Printing Office
Little, Elbert L. and Woodbury, Roy O. 1980. Rare and endemic trees of Puerto Rico and the Virgin Islands. Washington, DC: United States Department of Agriculture, Forest Service : For sale by the Superintendant of Documents, United States Government Printing Office.