Cita APA (7th ed.)

Doyle, R. A star called henry: Volume one of the last roundup. Penguin Books.

Cita Chicago (17th ed.)

Doyle, Roddy. A Star Called Henry: Volume One of the Last Roundup. New York: Penguin Books.

Cita MLA (9th ed.)

Doyle, Roddy. A Star Called Henry: Volume One of the Last Roundup. Penguin Books.