R. Gelman

3 references under this name, matched as it is written. Somebody else may write under it too, and the same person may appear here spelled another way.

Preverbal and verbal counting and computation

C. R. Gallistel and others (1992) · Elsevier BV

Subitizing: The preverbal counting process

C. R. Gallistel and others (1991) · Erlbaum Hillsdale, NJ

The child’s understanding of number

R. Gelman and others (1978) · Harvard University Press