Wilson, R. G. (2003). A Guide to Popular U.S. landmarks. Franklin Watts.
Cita Chicago Style (17a ed.)Wilson, Richard Guy. A Guide to Popular U.S. Landmarks. Franklin Watts, 2003.
Cita MLA (8a ed.)Wilson, Richard Guy. A Guide to Popular U.S. Landmarks. Franklin Watts, 2003.
Precaución: Estas citas no son 100% exactas.