Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Singer, H. W. Unemployment and the Unemployed. Lond.: P.S.King, 1940.

Cita MLA (8a ed.)

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