APA

Graham I., Longworth M. & Poore D. (2004). E.Explore Space Travel. London: Dorling Kindersley.

Chicago

Graham Ian, Longworth Mark and Poore Darren. 2004. E.Explore Space Travel. London: Dorling Kindersley.

Harvard

Graham I., Longworth M. and Poore D. (2004). E.Explore Space Travel. London: Dorling Kindersley.

MLA

Graham Ian, Longworth Mark and Poore Darren. E.Explore Space Travel. London: Dorling Kindersley. 2004.