Gaya APA

Linstone, H, A., Turoff, M. (1979). The Delphi Method : Techniques and Applications . Canada: Addison-Wesley Publising Company.

Gaya MLA

Linstone, Harold, A.., Turoff, Murray. "The Delphi Method : Techniques and Applications". Canada: Addison-Wesley Publising Company, 1979. Text.