APA (7th ed.) Citation

Eric Tan. (2004). Why Eggs Come In Different Shapes, Colours And Sizes (Tell Me WHY Series). Penerbitan Hartamas.

Chicago Style (17th ed.) Citation

Eric Tan. Why Eggs Come In Different Shapes, Colours And Sizes (Tell Me WHY Series). Kuala Lumpur: Penerbitan Hartamas, 2004.

MLA (9th ed.) Citation

Eric Tan. Why Eggs Come In Different Shapes, Colours And Sizes (Tell Me WHY Series). Penerbitan Hartamas, 2004.