APA Style

Clemson, W. et al (2004). Using Maths : Exciting Real Life Maths Activities : Extreme Sports Challenge . China: Ticktock Entertaiment Ltd.

MLA Style

Clemson, Wendy. et al. "Using Maths : Exciting Real Life Maths Activities : Extreme Sports Challenge". China: Ticktock Entertaiment Ltd, 2004. Text.