APA (7th ed.) Citation

Stack, L. (2013). Supercompetent: The six keys to perform at your productive best. The Productivity Pro.

Chicago Style (17th ed.) Citation

Stack, Laura. Supercompetent: The Six Keys to Perform at Your Productive Best. Highlands Ranch: The Productivity Pro, 2013.

MLA (9th ed.) Citation

Stack, Laura. Supercompetent: The Six Keys to Perform at Your Productive Best. The Productivity Pro, 2013.