Cita APA (7th ed.)
Geach, J. (2014). Galaxy: Mapping the cosmos. Reaktion Books.
Cita Chicago (17th ed.)
Geach, James. Galaxy: Mapping the Cosmos. London: Reaktion Books, 2014.
Cita MLA (9th ed.)
Geach, James. Galaxy: Mapping the Cosmos. Reaktion Books, 2014.
Atenció: Aquestes cites poden no estar 100% correctes.