APA (7th ed.) Citation

Humphreys, N., & Cheng Puay Koon. (2016). The hunt for the green boomerang. National Park.

Chicago Style (17th ed.) Citation

Humphreys, Neil, and Cheng Puay Koon. The Hunt for the Green Boomerang. Singapore: National Park, 2016.

MLA (9th ed.) Citation

Humphreys, Neil, and Cheng Puay Koon. The Hunt for the Green Boomerang. National Park, 2016.