004520a00a22001930004500 0007-1269 British Journal of Psychology Q SLML:10(1930)-12(1932);14(1934)-40(1967) Leicester:British Psychological Society 1930 1967 S C ddc 5355 5355 SLMLJNL REF SLMLJ SLMLJ678467 2020-09-20 0 ddc SLML SLML 0 0 2020-09-20 0 2