Sanchez-Saavedra, E. M. (1975). A description of the country: Virginia's cartographers and their maps 1607 - 1881. Virginia State Library.
Chicago-Zitierstil (17. Ausg.)Sanchez-Saavedra, E. M. A Description of the Country: Virginia's Cartographers and Their Maps 1607 - 1881. Richmond: Virginia State Library, 1975.
MLA-Zitierstil (9. Ausg.)Sanchez-Saavedra, E. M. A Description of the Country: Virginia's Cartographers and Their Maps 1607 - 1881. Virginia State Library, 1975.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.