Irwin Robert. (2005). Real Estate Investor's Checklist. American: MC Graw Hill.
Trích dẫn kiểu ChicagoIrwin Robert. Real Estate Investor's Checklist. American: MC Graw Hill, 2005.
Deismireacht MLAIrwin Robert. Real Estate Investor's Checklist. American: MC Graw Hill, 2005.
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