William Pfeiffer

• Handbook of Structured Experiences for Human Relations Training
• Handbook of Structured Experiences for Human Relations Training
• Handbook of Structured Experiences for Human Relations Training. (Series in Human Relations Training)
• Le répertoire de l'animateur de groupe
• Le répertoire de l'animateur de groupe ; 316 expériences structurées en relations humaines
• The 1972 Annual/Pbn 0071Q
• The 1973 Annual/Pbn 012Aq
• The 1976 Annual/Pbn 045Aq
• The 1977 Annual/Pbn 091Aq
• The 1978 Annual/Pbn 114Aq
• The 1979 Annual/Pbn 128Aq
• The 1981 Annual/Pbn 207Aq