Παραπομπή σε μορφή APA (7η εκδ.)

Gray, B. H. (1991). The profit motive and patient care: The changing accountability of doctors and hospitals. Harvard.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Gray, Bradford H. The Profit Motive and Patient Care: The Changing Accountability of Doctors and Hospitals. Harvard, 1991.

Παραπομπή σε μορφή MLA (9th εκδ.)

Gray, Bradford H. The Profit Motive and Patient Care: The Changing Accountability of Doctors and Hospitals. Harvard, 1991.