APA (7th ed.) Citation

Diffrient, N., Tilley, A. R., & Harman, D. (2017). Humanscale: Manual. IA Collaborative ventures, LLC.

Chicago Style (17th ed.) Citation

Diffrient, Niels, Alvin R. Tilley, and David Harman. Humanscale: Manual. Chicago, IL: IA Collaborative ventures, LLC, 2017.

MLA (9th ed.) Citation

Diffrient, Niels, et al. Humanscale: Manual. IA Collaborative ventures, LLC, 2017.