Tohutoro APA (7th ed.)
Barras, R. (2009). Building cycles: Growth & instability. Ames, Iowa : Wiley-Blackwell.
Tohutoru Kātū Chicago (17th ed.)
Barras, Richard. Building Cycles: Growth & Instability. Chichester, West Sussex, U.K.: Ames, Iowa : Wiley-Blackwell, 2009.
Tohutoro MLA (9th ed.)
Barras, Richard. Building Cycles: Growth & Instability. Ames, Iowa : Wiley-Blackwell, 2009.
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