APA (7th ed.) Citation

Dunn, R. S., Dunn, M. M., & Penn, W. (1986). The world of William Penn. University of Pennsylvania Press.

Chicago Style (17th ed.) Citation

Dunn, Richard S., Mary Maples Dunn, and William Penn. The World of William Penn. Philadelphia: University of Pennsylvania Press, 1986.

MLA (8th ed.) Citation

Dunn, Richard S., et al. The World of William Penn. University of Pennsylvania Press, 1986.

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