Frank J. Gallucci
Broek, Jan O. M. and John W. Webb. “A Geography of Mankind”, New York, McGraw-Hill Book Co., 1968.
Carrión, Arturo Morales, Ed. Chapters by: Aida R. Caro, Costas Arturo, Santana Luis, Gonzalez Vales. “Puerto Rico—A Political and Cultural History”, New York, W. W. Norton & Co., 1983.
Dooley, Eliza B. K. “Old San Juan”, Williamsport, Pennsylvania, Bro-Dart Publishing Co., 1969.
Harper, A. Robert and Theodore H. Schmudde. “Between Two Worlds”, A New Introduction To Geography, Boston, Massachusetts, Houghton Mifflin Co., 1973.
Marqués, René, “The Oxcart”, New York, Charles Scribners’ Sons, 1969.
Martin, Eleanor J. “Rene Marques”, Boston, Massachusetts, Rutgers State University Twayne Publishing A Division of G. K. Hall & Co., 1979.
Murphy, Rhoads “Patterns On The Earth”, Chicago, Illinois, Rand McNally College Publishing Co., 1978.
Thieme, Frederick P. “The Puerto Rican Population, A Study In Human Biology”, Ann Arbor, Michigan, University of Michigan, 1959.
Wagenheim, Kal. “Cuentos” An Anthology of Short Stories From Puerto Rico, New York, Schocken Books, 1978.
Zimolak, Chester E. and Charles A. Stanfield, Jr. “The Human Landscape”, Columbus, Ohio, Charles E. Merrill Publishing Co., 1979.
(figure available in print form)
(figure available in print form)
Posición geográfica de Puerto Rico.