APA (7th ed.) Citation

DeYoung, D. B. (2005). Thousands, not billions: Challenging an icon of evolution : questioning the age of the Earth. Master Books.

Chicago Style (17th ed.) Citation

DeYoung, Donald B. Thousands, Not Billions: Challenging an Icon of Evolution : Questioning the Age of the Earth. Green Forest, AR: Master Books, 2005.

MLA (9th ed.) Citation

DeYoung, Donald B. Thousands, Not Billions: Challenging an Icon of Evolution : Questioning the Age of the Earth. Master Books, 2005.