AU  - Staub B
TI  - The purpose of survival: Is it cognitive development?
PT  - JOUR
DP  - 1989
TA  - JAMA
pages = {2539},
VI  - 262
IP  - 18
AID  - 10.1001/jama.1989.03430180077019 [doi]
4100  - http://dx.doi.org/10.1001/jama.1989.03430180077019
SO  - JAMA November 10, 1989 262(18):2539