APA (7th ed.) Citation

Hennessey, M. (2018). Zero hour for gen X: How the last adult generation can save America from millennials. Encounter Books.

Chicago Style (17th ed.) Citation

Hennessey, Matthew. Zero Hour for Gen X: How the Last Adult Generation Can Save America from Millennials. New York: Encounter Books, 2018.

MLA (9th ed.) Citation

Hennessey, Matthew. Zero Hour for Gen X: How the Last Adult Generation Can Save America from Millennials. Encounter Books, 2018.