World Health Organization. Regional Office for the Eastern Mediterranean & ebrary, Inc. (2009). A practical guide to developing and implementing school policy on diet and physical activity. World Health Organization, Regional Office for the Eastern Mediterranean.
Παραπομπή σε μορφή Chicago (17η εκδ.)World Health Organization. Regional Office for the Eastern Mediterranean και Inc ebrary. A Practical Guide to Developing and Implementing School Policy on Diet and Physical Activity. Geneva: World Health Organization, Regional Office for the Eastern Mediterranean, 2009.
Παραπομπή σε μορφή MLA (9th εκδ.)World Health Organization. Regional Office for the Eastern Mediterranean και Inc ebrary. A Practical Guide to Developing and Implementing School Policy on Diet and Physical Activity. World Health Organization, Regional Office for the Eastern Mediterranean, 2009.