APA-Zitierstil (7. Ausg.)

Cetron, M. J., & O'Toole, T. (1983). Encounters with the future: A forecast of life into the 21st century (First McGraw-Hill paperback edition.). McGraw-Hill Book Company.

Chicago-Zitierstil (17. Ausg.)

Cetron, Marvin J., und Thomas O'Toole. Encounters with the Future: A Forecast of Life into the 21st Century. First McGraw-Hill paperback edition. New York: McGraw-Hill Book Company, 1983.

MLA-Zitierstil (9. Ausg.)

Cetron, Marvin J., und Thomas O'Toole. Encounters with the Future: A Forecast of Life into the 21st Century. First McGraw-Hill paperback edition. McGraw-Hill Book Company, 1983.