Cita APA (7a ed.)

Gorga, G., & Madoz, M. C. (2002). Distance Education.A system view, Michael Moore, Greg Kearsley: Wadsworth Publishing Company. ISBN: 0-534-26496-4.

Cita Chicago Style (17a ed.)

Gorga, Gladys, y María Cristina Madoz. Distance Education.A System View, Michael Moore, Greg Kearsley: Wadsworth Publishing Company. ISBN: 0-534-26496-4. 2002.

Cita MLA (8a ed.)

Gorga, Gladys, y María Cristina Madoz. Distance Education.A System View, Michael Moore, Greg Kearsley: Wadsworth Publishing Company. ISBN: 0-534-26496-4. 2002.