Cita APA (7a ed.)

Singer, H. W. (1940). Unemployment and the unemployed. P. S. King & Son.

Cita Chicago Style (17a ed.)

Singer, H. W. Unemployment and the Unemployed. London: P. S. King & Son, 1940.

Cita MLA (9a ed.)

Singer, H. W. Unemployment and the Unemployed. P. S. King & Son, 1940.