Holtje, B. (1982). Successful real estate negotiation strategy. John Wiley and Sons.
Chicago-viite (17. p.)Holtje, Bert. Successful Real Estate Negotiation Strategy. John Wiley and Sons, 1982.
MLA-viite (9. p.)Holtje, Bert. Successful Real Estate Negotiation Strategy. John Wiley and Sons, 1982.
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