APA (7th ed.) Zitazioa
Hopkins, C. (2007). Sound Insulation. Routhledge.
Chicago Style (17th ed.) Zitazioa
Hopkins, Carl. Sound Insulation. New York: Routhledge, 2007.
MLA (9th ed.) Zitazioa
Hopkins, Carl. Sound Insulation. Routhledge, 2007.
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