Παραπομπή σε μορφή APA (7η εκδ.)

Richey, C. W. (1972). Forecasting real estate demand. Business Research Division, University of Colorado.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Richey, Clyde W. Forecasting Real Estate Demand. Boulder, Colo.: Business Research Division, University of Colorado, 1972.

Παραπομπή σε μορφή MLA (8th εκδ.)

Richey, Clyde W. Forecasting Real Estate Demand. Business Research Division, University of Colorado, 1972.