Cita APA (7a ed.)

Howells, G., & Wilhelmsson, T. (1997). EC consumer law. Ashgate.

Cita Chicago Style (17a ed.)

Howells, Geraint, y Thomas Wilhelmsson. EC Consumer Law. Aldershot [etc.]: Ashgate, 1997.

Cita MLA (9a ed.)

Howells, Geraint, y Thomas Wilhelmsson. EC Consumer Law. Ashgate, 1997.