Gaya APA

Arnold, N., Saulles, T, D. (2009). Horrible science : The terrirable truth about time (1nd Edition). London: ScholasticLtd.

Gaya MLA

Arnold, Nick., Saulles, Tony, De. "Horrible science : The terrirable truth about time". 1nd Edition London: ScholasticLtd, 2009. Text.