Cita APA (7a ed.)
Stamper, P. The Gravity of Us. Bloomsbury.
Cita estilo Chicago (17a ed.)
Stamper, Phil. The Gravity of Us. Nueva York, EUA: Bloomsbury.
Cita MLA (9a ed.)
Stamper, Phil. The Gravity of Us. Bloomsbury.
Precaución: Estas citas no son 100% exactas.