Παραπομπή APA

Calvino, I., & Colquhoun, A. (1980). Our Ancestors (1st.). Picador.

Παραπομπή Chicago Style

Calvino, Italo, και Archibald Colquhoun. Our Ancestors. 1st. London: Picador, 1980.

Παραπομπή MLA

Calvino, Italo, και Archibald Colquhoun. Our Ancestors. 1st. Picador, 1980.