Holtje, B. (1982). Successful real estate negotiation strategy. John Wiley and Sons.
Chicago Style (17. basım) AtıfHoltje, Bert. Successful Real Estate Negotiation Strategy. John Wiley and Sons, 1982.
MLA (9th ed.) AtıfHoltje, Bert. Successful Real Estate Negotiation Strategy. John Wiley and Sons, 1982.
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