APA (7th ed.) Zitazioa
Hurd, M. K. (1979). Formwork for concrete (4th ed.). American Concrete Institute.
Chicago Style (17th ed.) Zitazioa
Hurd, M. K. Formwork for Concrete. 4th ed. Detroit: American Concrete Institute, 1979.
MLA (9th ed.) Zitazioa
Hurd, M. K. Formwork for Concrete. 4th ed. American Concrete Institute, 1979.
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