APA (7th ed.) Citation

Speed, J., Bassett, T., Chiswell, R., & Lamb, F. (1981). Virginia and Maryland in 1676: A map of Virginia and Maryland. Historic Urban Plans.

Chicago Style (17th ed.) Citation

Speed, John, Thomas Bassett, Richard Chiswell, and Francis Lamb. Virginia and Maryland in 1676: A Map of Virginia and Maryland. Ithaca, N.Y.: Historic Urban Plans, 1981.

MLA (9th ed.) Citation

Speed, John, et al. Virginia and Maryland in 1676: A Map of Virginia and Maryland. Historic Urban Plans, 1981.