Cita APA (7a ed.)

Penn, W., Dunn, R. S., & Dunn, M. M. (1981). The Papers of William Penn, Volume 1: 1644-1679. University of Pennsylvania Press.

Cita Chicago Style (17a ed.)

Penn, William, Richard S. Dunn, y Mary Maples Dunn. The Papers of William Penn, Volume 1: 1644-1679. Philadelphia: University of Pennsylvania Press, 1981.

Cita MLA (8a ed.)

Penn, William, et al. The Papers of William Penn, Volume 1: 1644-1679. University of Pennsylvania Press, 1981.