Holstine, C. E., & Hobbs, R. S. (2005). Spanning Washington: Historic highway bridges of the Evergreen State. Washington State University Press.
Cita Chicago Style (17a ed.)Holstine, Craig E., y Richard S. Hobbs. Spanning Washington: Historic Highway Bridges of the Evergreen State. Pullman, Wash.: Washington State University Press, 2005.
Cita MLA (8a ed.)Holstine, Craig E., y Richard S. Hobbs. Spanning Washington: Historic Highway Bridges of the Evergreen State. Washington State University Press, 2005.
Precaución: Estas citas no son 100% exactas.