Gretton, T. (1997). European Illustrated Weekly Magazines, c. 1850-1900. A Model and a Counter-Model for the Work of José Guadalupe Posada. Universidad Nacional Autónoma de México.
Cita Chicago Style (17a ed.)Gretton, Thomas. European Illustrated Weekly Magazines, C. 1850-1900. A Model and a Counter-Model for the Work of José Guadalupe Posada. Universidad Nacional Autónoma de México, 1997.
Cita MLA (9a ed.)Gretton, Thomas. European Illustrated Weekly Magazines, C. 1850-1900. A Model and a Counter-Model for the Work of José Guadalupe Posada. Universidad Nacional Autónoma de México, 1997.
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