Luepker, R. V. (2004). Cardiovascular survey methods (3rd ed.). World Health Organization.
Lua i Stíl Chicago (17ú heag.)Luepker, Russell V. Cardiovascular Survey Methods. 3rd ed. Geneva: World Health Organization, 2004.
Lua MLA (8ú heag.)Luepker, Russell V. Cardiovascular Survey Methods. 3rd ed. World Health Organization, 2004.
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