Não informado. (1970). Polish Psychological Bulletin. Polish Academy of Sciences, Committee for Psychological Sciences.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Polish Psychological Bulletin. Warsaw: Polish Academy of Sciences, Committee for Psychological Sciences, 1970.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Polish Psychological Bulletin. Polish Academy of Sciences, Committee for Psychological Sciences, 1970.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.