World Health Organization. (2004). World report on knowledge for better health: Strengthening health systems. World Health Organization.
Παραπομπή σε μορφή Chicago (17η εκδ.)World Health Organization. World Report on Knowledge for Better Health: Strengthening Health Systems. Geneva: World Health Organization, 2004.
Παραπομπή σε μορφή MLA (8th εκδ.)World Health Organization. World Report on Knowledge for Better Health: Strengthening Health Systems. World Health Organization, 2004.
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