APA

Akinson S., Doughty S. & Fjiske K. (2002). Space Travel. London: Belitha Press.

Chicago

Akinson Stuart, Doughty Sarah and Fjiske Katrina. 2002. Space Travel. London: Belitha Press.

Harvard

Akinson S., Doughty S. and Fjiske K. (2002). Space Travel. London: Belitha Press.

MLA

Akinson Stuart, Doughty Sarah and Fjiske Katrina. Space Travel. London: Belitha Press. 2002.