Cita APA (7a ed.)

American Headache Society & International Headache Society. (2004). Headache currents. Blackwell Pub.

Cita Chicago Style (17a ed.)

American Headache Society y International Headache Society. Headache Currents. [Oxford, UK]: Blackwell Pub, 2004.

Cita MLA (9a ed.)

American Headache Society y International Headache Society. Headache Currents. Blackwell Pub, 2004.