Παραπομπή σε μορφή APA (7η εκδ.)

Cross, I. Music as an emergent exaptation: Ian Cross. Music, language, and human evolution.(2012).

Παραπομπή σε μορφή Chicago (17η εκδ.)

Cross, Ian. "Music as an Emergent Exaptation: Ian Cross." Music, Language, and Human Evolution.(2012) .

Παραπομπή σε μορφή MLA (8th εκδ.)

Cross, Ian. "Music as an Emergent Exaptation: Ian Cross." Music, Language, and Human Evolution.(2012), .