APA (7th ed.) Citation

Teo Aik Chek. (2012). Why simplify?: A teenager's guide to a simple and purposeful life. ARMOUR Publishing House.

Chicago Style (17th ed.) Citation

Teo Aik Chek. Why Simplify?: A Teenager's Guide to a Simple and Purposeful Life. Singapore: ARMOUR Publishing House, 2012.

MLA (9th ed.) Citation

Teo Aik Chek. Why Simplify?: A Teenager's Guide to a Simple and Purposeful Life. ARMOUR Publishing House, 2012.

Warning: These citations may not always be 100% accurate.