Cita APA (7a ed.)

Gavin, D. (2003). Outer spaces. Dorling Kindersley.

Cita Chicago Style (17a ed.)

Gavin, Diarmuid. Outer Spaces. [London]: Dorling Kindersley, 2003.

Cita MLA (9a ed.)

Gavin, Diarmuid. Outer Spaces. Dorling Kindersley, 2003.