PFEIFFER W. (1996). THE ENCY OF GROUP ACTIVITIES. PIEIFFER & CO.
Chicago Style (17th ed.) CitationPFEIFFER W. THE ENCY OF GROUP ACTIVITIES. AMSTERDAN: PIEIFFER & CO, 1996.
MLA (9th ed.) CitationPFEIFFER W. THE ENCY OF GROUP ACTIVITIES. PIEIFFER & CO, 1996.
Warning: These citations may not always be 100% accurate.