American Concrete Institute, editor. (1990). Concrete floor flatness and levelness. American Concrete Institute.
Cita Chicago Style (17a ed.)American Concrete Institute, editor. Concrete Floor Flatness and Levelness. Detroit: American Concrete Institute, 1990.
Cita MLA (9a ed.)American Concrete Institute, editor. Concrete Floor Flatness and Levelness. American Concrete Institute, 1990.
Precaución: Estas citas no son 100% exactas.