APA (7th ed.) Citation

Butler, H. B. (1931). Unemployment problems in the United States. P. S. King & Son, Ltd..

Chicago Style (17th ed.) Citation

Butler, H. B. Unemployment Problems in the United States. Geneva: P. S. King & Son, Ltd., 1931.

MLA (9th ed.) Citation

Butler, H. B. Unemployment Problems in the United States. P. S. King & Son, Ltd., 1931.

Warning: These citations may not always be 100% accurate.