Frost, R., Fox, A. K., & Strauss, J. (2019). E-marketing (Eighth edition.). Routledge.
Lua i Stíl Chicago (17ú heag.)Frost, Raymond, Alexa K. Fox, agus Judy Strauss. E-marketing. Eighth edition. New York, NY: Routledge, 2019.
Lua MLA (8ú heag.)Frost, Raymond, et al. E-marketing. Eighth edition. Routledge, 2019.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.