APA (7th ed.) Citation

Thomas, W. H. (2007). What are old people for?: How elders will save the world. Vanderwyk & Burnham.

Chicago Style (17th ed.) Citation

Thomas, William H. What Are Old People for?: How Elders Will Save the World. Acton: Vanderwyk & Burnham, 2007.

MLA (9th ed.) Citation

Thomas, William H. What Are Old People for?: How Elders Will Save the World. Vanderwyk & Burnham, 2007.

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