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.
Lua i Stíl Chicago (17ú heag.)World Health Organization. Regional Office for the Eastern Mediterranean agus 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.
Lua MLA (9ú heag.)World Health Organization. Regional Office for the Eastern Mediterranean agus 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.