APA (7th ed.) Zitazioa

Linstone, H. A., Simmonds, W. H. C., & Bäckstrand, G. (1977). Futures research: New directions. Addison-Wesley Pub. Co., Advanced Book Program.

Chicago Style (17th ed.) Zitazioa

Linstone, Harold A., Walter Henry Clive Simmonds, eta Göran Bäckstrand. Futures Research: New Directions. Reading, Mass.: Addison-Wesley Pub. Co., Advanced Book Program, 1977.

MLA (9th ed.) Zitazioa

Linstone, Harold A., et al. Futures Research: New Directions. Addison-Wesley Pub. Co., Advanced Book Program, 1977.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.