University of California Chronicle, Том 32University of California Press, 1930 |
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Стр. 51
... birth rate produces a population tending to have a high birth rate . There is a natural tendency , of course , for a population . to become stabilized . Knowing the death rates and birth rates of the several age groups it is possible to ...
... birth rate produces a population tending to have a high birth rate . There is a natural tendency , of course , for a population . to become stabilized . Knowing the death rates and birth rates of the several age groups it is possible to ...
Стр. 52
... birth rate of our foreign born which increases the fecundity of the white group . The second generation of immigrants have larger families than the old American stock , but in our birth statistics these go to the credit of the American ...
... birth rate of our foreign born which increases the fecundity of the white group . The second generation of immigrants have larger families than the old American stock , but in our birth statistics these go to the credit of the American ...
Стр. 67
... birth rate fallen ? This decline simply follows the decline of the birth rate in the whites , and for the most part the same causes were probably operating in both cases . It is largely a case of lag like the fall of the death rate . A ...
... birth rate fallen ? This decline simply follows the decline of the birth rate in the whites , and for the most part the same causes were probably operating in both cases . It is largely a case of lag like the fall of the death rate . A ...
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RICKARD T A A Journey to Cyprus 410 | 3 |
Navajo Prayer to the Thunder Bird LAURA ADAMS ARMER | 21 |
ON THE ROLE OF TIME IN MARCEL PROUST D S | 24 |
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