Pfeiffer, J. W., & Jones, J. E. (1977). A handbook of structured experiences for human relations training. University Associates, Inc.
Lua i Stíl Chicago (17ú heag.)Pfeiffer, J. William, agus John E. Jones. A Handbook of Structured Experiences for Human Relations Training. California: University Associates, Inc, 1977.
Lua MLA (9ú heag.)Pfeiffer, J. William, agus John E. Jones. A Handbook of Structured Experiences for Human Relations Training. University Associates, Inc, 1977.
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