TY  - JOUR
PY  - 1958//
TI  - Variables in early discrimination learning: I. Motor responses in the training of a left-right discrimination
JO  - Child development
A1  - Jeffrey, W. E.
SP  - 269
EP  - 275
VL  - 29
IS  - 2
N2  - <p>[Abstract unavailable]</p> <p>Language: en</p> 
LA  - en
SN  - 0009-3920
UR  - http://dx.doi.org/
ID  - ref1
ER  -