APA (7th ed.) Citation

Helmer, O. (1966). The use of the Delphi technique in problems of educational innovations. Rand Corporation.

Chicago Style (17th ed.) Citation

Helmer, Olaf. The Use of the Delphi Technique in Problems of Educational Innovations. Santa Monica, California: Rand Corporation, 1966.

MLA (9th ed.) Citation

Helmer, Olaf. The Use of the Delphi Technique in Problems of Educational Innovations. Rand Corporation, 1966.