TY  - JOUR
PY  - 1940//
TI  - The Effects of 10 Mgs. of Benzedrine Sulfate and Low Oxygen Tension on the Span of Attention for Letters, and Other Factors
JO  - Journal of psychology, The
A1  - Seitz, Clifford P.
A1  - Barmack, Joseph Ephraim
SP  - 241
EP  - 247
VL  - 10
IS  - 2
N2  - <p>[Abstract unavailable]</p> 
LA  - 
SN  - 0022-3980
UR  - http://dx.doi.org/10.1080/00223980.1940.9916999
ID  - ref1
ER  -