Παραπομπή σε μορφή APA (7η εκδ.)

Sekhon, M., & Hartley, D. E. (2014). Basics of e-learning revisited. American Society for Training and Development.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Sekhon, Manjit, και Darin E. Hartley. Basics of E-learning Revisited. Alexandria, USA: American Society for Training and Development, 2014.

Παραπομπή σε μορφή MLA (9th εκδ.)

Sekhon, Manjit, και Darin E. Hartley. Basics of E-learning Revisited. American Society for Training and Development, 2014.