World Health Organization. (2007). Cancer Control, Knowledge into Action Who Guide for Effective Programmes: Early Detection. World Health.
Παραπομπή σε μορφή Chicago (17η εκδ.)World Health Organization. Cancer Control, Knowledge into Action Who Guide for Effective Programmes: Early Detection. Washington D.C: World Health, 2007.
Παραπομπή σε μορφή MLA (9th εκδ.)World Health Organization. Cancer Control, Knowledge into Action Who Guide for Effective Programmes: Early Detection. World Health, 2007.
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