THE DISTRIBUTION OF AGE AND SEX CHARACTERISTICS IN SIERRA LEONE AND THEIR RELEVANCE TO A STUDY OF INTERNAL MIGRATION

 

作者: KENNETH SWINDELL,  

 

期刊: Tijdschrift voor economische en sociale geografie  （WILEY Available online 1970）
卷期: Volume 61, issue 1  

页码: 366-373

 

ISSN:0040-747X

 

年代: 1970

 

DOI:10.1111/j.1467-9663.1970.tb00486.x

 

出版商: Blackwell Publishing Ltd

 

数据来源: WILEY

 

 

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