APA (7th ed.) Zitazioa
Singh, S. N. (2002). Blowing agents for polyurethane foams. Rapra Technology Ltd..
Chicago Style (17th ed.) Zitazioa
Singh, S. N. Blowing Agents for Polyurethane Foams. Shawbury, U.K.: Rapra Technology Ltd., 2002.
MLA (9th ed.) Zitazioa
Singh, S. N. Blowing Agents for Polyurethane Foams. Rapra Technology Ltd., 2002.
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