TY  - JOUR
A1  - Lotka, A. J.
T1  - The Geographic Distribution of Intrinsic Natural Increase in the United States, and an Examination of the Relation Between Several Measures of Net Reproductivity
Y1  - 1936
JF  - Journal of the American Statistical Association
VL  - 31
SP  - 273
EP  - -294

ER  -