TY  - RPRT
TI  - Further normative data on the progressive matrices.
AU  - G SPERRAZZO
AU  - W L WILKINS
PY  - 1958
DO  - 10.1037/h0046915
UR  - https://pubmed.ncbi.nlm.nih.gov/13513872/
ID  - 13513872
ER  -