Παραπομπή σε μορφή APA (7η εκδ.)

Gade, D. W. (2016). Spell of the Urubamba: Anthropogeographical Essays on an Andean Valley in Space and Time. Springer International Publishing : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Gade, Daniel W. Spell of the Urubamba: Anthropogeographical Essays on an Andean Valley in Space and Time. Cham: Springer International Publishing : Imprint: Springer, 2016.

Παραπομπή σε μορφή MLA (8th εκδ.)

Gade, Daniel W. Spell of the Urubamba: Anthropogeographical Essays on an Andean Valley in Space and Time. Springer International Publishing : Imprint: Springer, 2016.