APA (7th ed.) Citation

Smelser, D. P. (1919). Unemployment and American trade unions.

Chicago Style (17th ed.) Citation

Smelser, David Paul. Unemployment and American Trade Unions. Baltimore, 1919.

MLA (9th ed.) Citation

Smelser, David Paul. Unemployment and American Trade Unions. 1919.

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