Gaines, G., Coleman, D. S., & Crawford, L. L. (1996). Real estate math: Explanations, problems, solutions (5th ed.). Real Estate Education Company.
Παραπομπή σε μορφή Chicago (17η εκδ.)Gaines, George, David S. Coleman, και Linda L. Crawford. Real Estate Math: Explanations, Problems, Solutions. 5th ed. Chicago, Illinois: Real Estate Education Company, 1996.
Παραπομπή σε μορφή MLA (9th εκδ.)Gaines, George, et al. Real Estate Math: Explanations, Problems, Solutions. 5th ed. Real Estate Education Company, 1996.
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