APA (7th ed.) Citation

linkedin.com (Firm), Butler, J., & Lidwell, W. (2015). Universal Principles of Design. linkedin.com.

Chicago Style (17th ed.) Citation

linkedin.com (Firm), Jill Butler, and William Lidwell. Universal Principles of Design. Carpenteria, CA: linkedin.com, 2015.

MLA (8th ed.) Citation

linkedin.com (Firm), et al. Universal Principles of Design. linkedin.com, 2015.

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