TY  - RPRT
TI  - RELATION BETWEEN PERCEPTUAL AND CONCEPTUAL OPERATIONS: NUMERICAL DISTANCE AND VISUAL EXTENT.
AU  - L TEFT
AU  - S WAPNER
AU  - H WERNER
AU  - J H MCFARLAND
PY  - 1964
DO  - 10.1111/j.2044-8295.1964.tb00927.x
UR  - https://pubmed.ncbi.nlm.nih.gov/14237883/
ID  - 14237883
ER  -