APA (7th ed.) Citation

Helmers, H. J., Lamal, N., & Cumby, J. (2021). Introduction: The printing press as an agent of power.

Chicago Style (17th ed.) Citation

Helmers, Helmer J., Nina Lamal, and Jamie Cumby. Introduction: The Printing Press as an Agent of Power. 2021.

MLA (9th ed.) Citation

Helmers, Helmer J., et al. Introduction: The Printing Press as an Agent of Power. 2021.