
This article does not have an abstract.
Author(s): Nathan Keyfitz; J. Amador-Guevara; G. Llanos; G. A. Silver; G. Rosen; R. R. Puffer; A. Robertson; J. M. Stycos; ; J. W. Morse; L. J. Reed; N. Keyfitz
Volume 42, Issue 2
(pages 1121–1122)
Published in 1964