TY  - JOUR
A1  - Dublin, L.I.
A1  - Lotka, A.J.
T1  - On the true rate of natural increase: As exemplified by the population of the United States, 1920
Y1  - 1925
DO  - 10.1080/01621459.1925.10503498
VL  - 20
IS  - 151

ER  -