APA (7th ed.) Citation

Francis, J. K., & Liogier, A. H. (1991). Naturalized exotic tree species in Puerto Rico. U.S. Dept. of Agriculture, Forest Service, Southern Forest Experiment Station.

Chicago Style (17th ed.) Citation

Francis, John K., and Alain H. Liogier. Naturalized Exotic Tree Species in Puerto Rico. New Orleans, La.: U.S. Dept. of Agriculture, Forest Service, Southern Forest Experiment Station, 1991.

MLA (9th ed.) Citation

Francis, John K., and Alain H. Liogier. Naturalized Exotic Tree Species in Puerto Rico. U.S. Dept. of Agriculture, Forest Service, Southern Forest Experiment Station, 1991.