Cita APA (7a ed.)
Hurd, M. K. (1979). Formwork for concrete (4th ed.). American Concrete Institute.
Cita Chicago Style (17a ed.)
Hurd, M. K. Formwork for Concrete. 4th ed. Detroit: American Concrete Institute, 1979.
Cita MLA (9a ed.)
Hurd, M. K. Formwork for Concrete. 4th ed. American Concrete Institute, 1979.
Precaución: Estas citas no son 100% exactas.