Cita APA (7a ed.)

Spyropoulos, G., Ball, C., & Enderwick, P. (1988). Trade unions today and tomorrow. Presses universitaires europeennes.

Cita Chicago Style (17a ed.)

Spyropoulos, Georges, Chriss Ball, y Peter Enderwick. Trade Unions Today and Tomorrow. Maastricht: Presses universitaires europeennes, 1988.

Cita MLA (9a ed.)

Spyropoulos, Georges, et al. Trade Unions Today and Tomorrow. Presses universitaires europeennes, 1988.