Παραπομπή σε μορφή APA (7η εκδ.)

(2014). Geographic variations in health care: What do we know and what can be done to improve health system performance? OECD.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Geographic Variations in Health Care: What Do We Know and What Can Be Done to Improve Health System Performance? Paris, France: OECD, 2014.

Παραπομπή σε μορφή MLA (9th εκδ.)

Geographic Variations in Health Care: What Do We Know and What Can Be Done to Improve Health System Performance? OECD, 2014.