• Harold Linstone and Murray Turoff, editors, 1975.  The Delphi Method:  Techniques and Applications.  London:   Addison-Wesley.
   Linstone and Turoff, Introduction
   Sam Scheele, Reality construction as a product of Delphi interaction
   Turoff, The policy Delphi.
   Robert Johansen, Richard Miller, Jacques Vallee, Group communication thru electronic media

• Special issue of Evaluation Practice edited by Midge Smith, 15, 3, October, 1994.

• New Directions for Evaluation, 76, Winter 1997

Progress and future directions in evaluation:  perspectives on theory, practice, and methods.
Edited by Debra Rog and Deborah Fournier

• Richard Berk, Three trends in evaluation research
• Evelyn Clemimsky, Evaluation:  Where are we?
• Ernest House, The future perfect of evaluation
• Yvonna Lincoln, Tracks toward a postmodern politics of evaluation.
• Carl Moore, Group techniques for idea building
• Michael Scriven:  The final synthesis.
• Tom Schwandt, The landscape of values in evaluation:  charted terrain and unexplored territory
• Midge Smith, Evaluation:  Review of the past, preview of the future.
• Robert Stake, et al., The evolving synthesis of program value.
• William M. K. Trochim, An introduction to concept mapping for planning and evaluation.
• Joe Wholey, Clarifying goals, reporting results.
• Robert Yin, Case study evaluations