APA-referens (7:e uppl.)
Potter, D. A. (1975). PBTE: Problem Solver or Problem Maker? Methodological Problems and Issues. ERIC, Resources in Education (RIE).
Chicago-referens (17:e uppl.)
Potter, David A. "PBTE: Problem Solver or Problem Maker? Methodological Problems and Issues." ERIC, Resources in Education (RIE) 1975.
MLA-referens (9:e uppl.)
Potter, David A. "PBTE: Problem Solver or Problem Maker? Methodological Problems and Issues." ERIC, Resources in Education (RIE), 1975.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.