Cita APA (7th ed.)

Visser, P., & Cluydts, R. J. G. (1986). The General Practitioner and the Clinical Investigation of Sleep Complaints. Roche Scientific Service.

Cita Chicago (17th ed.)

Visser, P., i R. J. G. Cluydts. The General Practitioner and the Clinical Investigation of Sleep Complaints. Basel, Switzerland: Roche Scientific Service, 1986.

Cita MLA (9th ed.)

Visser, P., i R. J. G. Cluydts. The General Practitioner and the Clinical Investigation of Sleep Complaints. Roche Scientific Service, 1986.