Cita APA (7a ed.)

Helmers, M. H., & Hill, C. A. (2004). Defining visual rhetorics. Lawrence Erlbaum.

Cita Chicago Style (17a ed.)

Helmers, Marguerite H., y Charles A. Hill. Defining Visual Rhetorics. Mahwah, N.J. ; London: Lawrence Erlbaum, 2004.

Cita MLA (9a ed.)

Helmers, Marguerite H., y Charles A. Hill. Defining Visual Rhetorics. Lawrence Erlbaum, 2004.