TY  - JOUR
A1  - Ehrlich, P.
A1  - Holdren, J.
T1  - The impact of population growth
Y1  - 1971
DO  - 10.1126/science.171.3977.1212
JF  - Science
VL  - 171
IS  - 3977
SP  - 1212
EP  - -1217

ER  -