The Puerto Ricans strangers-then neighbors, by Clarence Ollson Senior. Foreword by Hubert H. Humphrey.
- Chicago Published in cooperation with the Anti-Defamation League of B'nai B'rith by Quadrangle Books [1965, c1961]
- 128 p. ill., map, plates.
First published in 1961 under title: Strangers-then neighbors.
Bibliography : p. [112-123]
Puerto Ricans in the United States Immigrants -- Social aspects--United states.