Cross, I. Music as an emergent exaptation: Ian Cross. Music, language, and human evolution.(2012).
Цитирование в стиле Чикаго (17-е изд.)Cross, Ian. "Music as an Emergent Exaptation: Ian Cross." Music, Language, and Human Evolution.(2012) .
Цитирование MLA (8-е изд.)Cross, Ian. "Music as an Emergent Exaptation: Ian Cross." Music, Language, and Human Evolution.(2012), .
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.