THORP, James; ROCKWELL SMITH, Leslie. CONCERNING THE ORIGIN OF THE WHITE QUARTZ SANDS OF NORTHERN PUERTO RICO. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 17, n. 2, p. 157–170, 1933. DOI: 10.46429/jaupr.v17i2.14248. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/14248. Acesso em: 27 apr. 2024.