有声读物: Americans All, Immigrants All

The United States Department of the Interior, Office of Education partnered with the Columbia Broadcasting System to present a series of 26 dramatic radio broadcast programs detailing the role of immigrants in the development of the USA. This small volume was printed as a supplement to the programs. It contains a great deal of the data concerning the contributions of immigrants to the country, often in condensed or tabular form, which were highlighted in the broadcasts. - Summary by Mark Smith