Glazer, Nathan. "A Commentary Report: The Puerto Ricans." Commentary, July, 1963.
Excerpt: If someone twenty-five years ago had looked around at the potential sources of new immigration to New York City, his eye might well have fallen on Puerto Rico, but he would probably also have concluded that the Puerto Ricans, if they came to New York, would have a very hard time adapting. Puerto Rico in the middle 30’s—after thirty-five years of American administration—was a scene of almost unrelieved misery. It was overcrowded and disease-ridden, almost without industry, suffering from the collapse of its major cash crop (sugar), its population undereducated and underemployed.