APA (7th ed.) Citation

Holub, J., & Slack, M. H. (2008). Knuckleheads. Chronicle Books.

Chicago Style (17th ed.) Citation

Holub, Joan, and Michael H. Slack. Knuckleheads. San Francisco, Calif.: Chronicle Books, 2008.

MLA (8th ed.) Citation

Holub, Joan, and Michael H. Slack. Knuckleheads. Chronicle Books, 2008.

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