Παραπομπή APA

Bright, J. R., & Schoeman, M. E. (1973). Guide to practical technological forecasting. Prentice hall.

Παραπομπή Chicago Style

Bright, James R., και Milton E.F Schoeman. Guide to Practical Technological Forecasting. New Jersey: Prentice hall, 1973.

Παραπομπή MLA

Bright, James R., και Milton E.F Schoeman. Guide to Practical Technological Forecasting. Prentice hall, 1973.