Παραπομπή σε μορφή APA (7η εκδ.)

Engmann, B. (2014). Near-Death Experiences: Heavenly Insight or Human Illusion? Springer International Publishing : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Engmann, Birk. Near-Death Experiences: Heavenly Insight or Human Illusion? Cham: Springer International Publishing : Imprint: Springer, 2014.

Παραπομπή σε μορφή MLA (8th εκδ.)

Engmann, Birk. Near-Death Experiences: Heavenly Insight or Human Illusion? Springer International Publishing : Imprint: Springer, 2014.