Campos-Leal , J. R. (2006). Reaching cleanliness in information through research. Universidad Autónoma de Tamaulipas.
Čikaški stil citiranja (17. izdanje)Campos-Leal , José Roberto. Reaching Cleanliness in Information Through Research. Universidad Autónoma de Tamaulipas, 2006.
MLA način citiranja (8. izdanje)Campos-Leal , José Roberto. Reaching Cleanliness in Information Through Research. Universidad Autónoma de Tamaulipas, 2006.
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