Παραπομπή σε μορφή APA (7η εκδ.)

Mantyla, K., & Gividen, J. R. (1997). Distance learning: A step-by-step guide for trainers. American Society for Training and Development.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Mantyla, Karen, και J. Richard Gividen. Distance Learning: A Step-by-step Guide for Trainers. Alexandria, VA: American Society for Training and Development, 1997.

Παραπομπή σε μορφή MLA (9th εκδ.)

Mantyla, Karen, και J. Richard Gividen. Distance Learning: A Step-by-step Guide for Trainers. American Society for Training and Development, 1997.