Scofield, W. M. (1967). Washington's historical markers. Touchstone Press.
Cita Chicago Style (17a ed.)Scofield, W. M. Washington's Historical Markers. Portland, Or.: Touchstone Press, 1967.
Cita MLA (8a ed.)Scofield, W. M. Washington's Historical Markers. Touchstone Press, 1967.
Precaución: Estas citas no son 100% exactas.