APA Style

Clemson, W., Clemson, D. (2011). Orange Level, Real World Maths #1: Fly a Jumbo Jet (Cetakan ke-2 (Cetakan ke-1: 2004)). Tunbridge Wells, Kent, UK: Ticktock Entertainment Ltd..

MLA Style

Clemson, Wendy., Clemson, David. "Orange Level, Real World Maths #1: Fly a Jumbo Jet". Cetakan ke-2 (Cetakan ke-1: 2004) Tunbridge Wells, Kent, UK: Ticktock Entertainment Ltd., 2011. Text.