: `

, , (Willcox) (1861 - 1964), . , . - (1907), . . - - (1891). , , - . . . . . 1650 1935. . . (1939).

Increase in the population of the Earth and of the continents since 1650, 'International migrations', v. 2, N. Y,, 1931, p. 31-82.

Vance R.., The development and status of American demography, .: The study of population, Chi., 1959, p. 291-92.

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