Guevara-Castillo, M. (2009). Political and public opinion information on the press. Universidad Autónoma de Tamaulipas.
Čikaški stil citiranja (17. izdanje)Guevara-Castillo, Melitón. Political and Public Opinion Information on the Press. Universidad Autónoma de Tamaulipas, 2009.
MLA način citiranja (8. izdanje)Guevara-Castillo, Melitón. Political and Public Opinion Information on the Press. Universidad Autónoma de Tamaulipas, 2009.
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