Cita APA (7th ed.)

Frost, R., Fox, A. K., & Strauss, J. (2019). E-marketing (Eighth edition.). Routledge.

Cita Chicago (17th ed.)

Frost, Raymond, Alexa K. Fox, i Judy Strauss. E-marketing. Eighth edition. New York, NY: Routledge, 2019.

Cita MLA (8th ed.)

Frost, Raymond, et al. E-marketing. Eighth edition. Routledge, 2019.